Ya know, I think you’re right…and since I, in a rare moment of lucidity, invented it, I hereby declare that the proper spelling requires two 't’s. 
Not that this guy was any worse than the thousands of other tailgaters I’ve encountered, buy this was just so freakin’ bizarre…
I was travelling through College Station on 290, which at the time was an undivided two lanes in each direction. When I’m on the road I make a conscious effort to stay away from other drivers. I seek out the solitude between the packs. So we’re in a little Mercedes and this absolute beater of a car with two people in it, headlights on, pulls right up behind us. I speed up to put some distance between us and he again pulls right behind us. Okay, his lights are bothersome and given the appearance of his car I wonder if he has insurance so I change lanes and slow. Fuckwit follows suit and gets right behind me. I spped up again and this time (he’s followed me for about 10 miles now) he pulls up next to me. College aged kid, TAMU sticker on his car, he rolls down the window and yells “All your lights are burned out… I’ll follow and protect you.”
I stare at him in disbelief. It’s about 2:30 in the fucking afternoon. My lights aren’t even on. I hadn’t braked. All my lights are in perfect working order as I both keep the car that way and the burned out light indicator there on the fucking dash isn’t lit.
I shake my head, notice his passenger is mortified with embarassment at the idiocy of what her companion just said, yell out "YOU FOOKIN’ IDIOT!!! and speed away, hopeful that if I get pulled over for trying to get the hell away from this dumbass that a trooper will believe me that such a moron is on the road.
I suspect drugs. Ass kickin’ make ya’ dummy drugs. In mass.
Unfortunately I don’t have the garage skills to implement my favorite retaliatory idea. The parts list consists of:
[ol]
[li]A fluid reservoir[/li][li]A small pump[/li][li]A remote switch on the dash[/li][li]A length of tubing[/li][li]A mounting bracket[/li][li]A dildo.[/li][/ol]
Don’t like my car urinating on you? Then back off. 
Heh, I’ve seen that “trick” in a couple of movies/TV shows. In real life, actual brake lights (which are brighter than tail lights, and in modern cars also include the middle light) don’t seem to phase 'gaters. I can’t tell you how many times I’ve had one on my tail, less than a car length behind me, when I’m in the non-leftmost lane, and I put my foot gently on the brake pedal just enough to slow down a tiny bit, and watch in my mirror as the stupid 'gater just gets closer.
The tactic that I’ve found works best for tailgaters is to slow down gently, watching as they get closer and closer, wait until they finally slow down themselves enough to increase the distance between our cars a bit, then accelerate back up to my normal driving speed. Now watch as the 'gater closes the gap, and when it’s less than my comfort zone, slow down again, watch them get ever closer then finally move back a bit, then accelerate again. Repeat. Three times usuall does it. I don’t know if it serves to wake up the driver who’s just on auto pilot, or if it convinces them that I’m erratic enough that they’re better off giving me some space, but it seems to work in a lot of cases.
Of course, then there’s the royal jerk I had the other day: Some expressways around here have the rightmost lane as a carpool lane. I’m driving along in the lane to the left of that, which is the rightmost lane I’m legally allowed to be in. There are two – count 'em – two lanes to my left. Some guy enters from the right, crosses over the carpool lane, gets in behind me and immediately starts riding me. So I take my foot of the gas, as per my normal tactic, and I watch in horror as, I swear, his front bumper gets within an inch or two of my back bumper. And this bozo doesn’t back off. So I speed up a bit and he immediately whips around me on the left, veers back into my lane missing my front bumper by inches, slams on his brakes for a few seconds, then speeds away. What the HELL is with people like that? I was in the RIGHTMOST lane I could be in, and he gets roadrage because I slowed down a bit? And this was in fairly heavy commute traffic, fercrissakes!
That’s the whole point. Reverse lights are white, not red. (Their purpose is to illuminate your path, not signal your location.)
I gotta say, I don’t really get this. The backup lights come on when you put your car into reverse. When a car is actually moving forward, it’s either not possible to put it into reverse or doing so would seriously damage the transmission. I’m not a tailgater, but if I saw the backup lights of the car in front of me suddenly come on while it was moving forward, I don’t think I’d be inclinded to slow down, thinking that that car is going to suddenly start zooming backwards towards me, I’d just think it had some electrical problem.
The worst tailgaters I know drive mainly in cities, or learned there at least My theory is that they do not develope the ability to judge relative speed from any significant distance. If they are more than a couple of car lengths back, they have no sense that they are going faster or slower than the vehicle in front. Developing the skill to pace a car from at least 100 yards back is the key to not tailgating when traffic is sparse.
In my experience , the average motorist has zero clue as to the existence, much less meaning of backup lights.
On a couple of occasions, I’ve been in a situation where I needed to back up, and there was someone behind me waiting for me to move. In one case it was at a gas pump, and someone waiting to use the pump, and no way for me to move forward. Repeatedly flashing my BU lights (cycling between R and Neutral) brought no response. Finally got out, walked back, at told the silly woman that I’d be happy to get out of her way, as soon as she got out of mine. (OK, I was a lot more polite).
In another case, the car in front of me stopped at a light, overshooting. The lady backed up out of the intersection (I was half a block back) but left her car in reverse. I pulled onto the shoulder, walked around in front of her, and told her she was still in reverse…she looked at me like I was a mind reader when she discovored I was correct. While this was happening another car pulled up right on her bumper.
Both my trucks have hydraulicly operated trailer brake controllers. These are wired to the brake lights, so I can flash my brakelights while accelerating…this seems to confuse the tailgaters.
My car has all of that except for the dildo, it’s called a windshield washer. Sure way to piss off a tailgater (ha), and at least get them to pass you if there is space for them to.
Maybe you could just hock a great, big lugie at them - we can still spit out of cars legally, right?
Ooh, that reminds me of another driving story. I got parked in severely at Wal*Mart the other day (actually had to go in the passenger side - people really just don’t care any more), and I just about smeared Vaseline all over the handle of his passenger door handle, which was perfectly lined up with my driver’s side window (I use Vaseline for my chapped lips, so I usually have a tube with me). I thought the better of it at the last minute - but oh, how I wanted to smear it on and imagine his passenger trying to figure out what crap was on her hand. And it would probably be on a mitten, not on skin - even better.
You would think so, given the time to think and reflect. However, according to my friend, IRL the response is completely reflexive and quite immediate; the ultimate in cognitive dissonance. So much so that he took great care before employing this stratagem to avoid causing multi-car pile-ups.
A friend of mine mounted a spotlight facing backwards on the rear deck of her car. When she was tailgated, she would simply turn it on for a few seconds, then turn it back off. Amazing how quickly they would drop back when she did that.
As always, do not follow Clothahump’s advice, it may be illegal in your jurisdiction, directly. It most certainly can get you ticketed as causing a road hazard. If ever used, it may cause accidents or even fatalities.