Dr. Hibert loots one and drives it away from a town meeting.
“So, can we keep all that stuff we stole?”
“I think that’s implied!”
And on the episode where Mr Burns tries to buy Lisa out, he sends a man on a Segway to drive them (Lisa, Homer, and Lisa’s staff) off the road.
The guest voice was Magic Johnson. They’re also made fun of the WNBA, if I remember right.
I suppose you could argue that Comic Book Guy is stalking Kate Mulgrew (Cpt. Janeway) - we see him downloading porn of her.
Skinner laments in one episode that only one student took the school up on its offer to implant a tracking device in his head - Martin Prince.
That’s all I can think of right now.
You guys are KILLING me.
I don’t know what’s more impressive – the fact that the Simpsons writers have referenced all this stuff, or that you guys remember the when where and context where you seen 'em.
I’m glad I thought of cicadas! The writers are not omniscient. Mwah ha ha ha ha!
Another blimp reference: Homer financed his entry of Lisa into the Little Miss Springfield beauty pageant by selling a contest prize - a flight in a blimp. I think the episode title was “Lisa the Beauty Queen”.
Keep in mind that cicadas were a big story this year- so if the writers decided to throw in some jokes about them, you wouldn’t have seen it yet. 
Hmmm… So Marge has razed a whorehouse?
Has Lisa been spoonfed ground up dolphin carcasses?
Are you really asking, Ilsa, or or you seeing if we’ll recognize your hints?
Little Lisa Slurry may not be pure dolphins, but it’s got kelp, dolphins, fish, and whales. It’ll cure what ails ya, it’s a petroleum-free lubricant, and is a handy explosive. And Burns tried to give some to Lisa (in a spoon) when she felt disgust about it.
Right, he sold his ticket to Barney, who promptly crashed the blimp.
More to the point, there’s the ep where Homer and his buddies form a motorcycle gang. They behave like a street gang: at one point they are lagging pennies at the KwikEMart and Apu chases them off with a broom.
How about breaking the fourth wall? I can’t think of any episode where they looked at the camera and addressed the audience.
You gotta be kidding. They do it CONSTANTLY.
In the Who Shot Mr. Burns two-ep storyline, at the end of the first ep, Clancy say, “I can’t solve this mystery (points at viewers) can you?”
In almost every ep in which he appears as a host, Lionel Hutz addresses the audience.
At the end of the ep where Homer and family goes to the island, the mysterious bird creature addresses the camera.
Bart makes several references to his Butterfinger endorsement. Fox gets referenced.
The closest they got to this (and it’s a big stretch) was when Homer took the family to Duff Gardens and the designated drivers (Marge, in this case) were locked inside a barbed wire enclosure.
Fox just reran last week the recent episode where Lisa goes head-to-head against Mr. Burns’ media control. At the end, both Smithers and Burns face the “camera”, smile and say wonderful things about Rupert Murdoch.
I can’t think of anything else offhand that involved concentration camps. But there have been a number of flashbacks to Skinner’s days in Vietnam, some of them in prison camps. (Like the one where a Viet Cong elephant eats his platoon.)
Not quite the Holocaust, but Grampa served in WWII, and we’ve seen that.
He’s also stalking Lynda Carter.
"CBG: The technical term is ‘courting’. The restraining order says, ‘no, no’, but her eyes say, ‘yes, yes!’ "
Have the Simpson’s won a lottery yet (and then pissed it away)?
Kent Brockman did. (Actually, I don’t think he pissed it away, I think he’s still kind of wealthy.)
Nitpick: That was not an accident. A gay advocacy group tampered with the dolls, and IIRC, it was G.I. Joes who were given Barbie’s voice.
But around that same time, genuine talking Barbies were the subject of some controversy. One of the phrases was “Math is really hard!” Of course, that can be taken two ways, but at any rate, this was the incident that inspired the main plot of that episode, with Malibu Stacy saying “Don’t ask me…I’m just a girl! Heehee! Heehee!”