And, “pull the lever, Kronk!”
In City of Heroes, players will talk in chat about badges. Since I’d rather level my toons as quick as possible, I don’t give a shit about badges, so I’ll quote from Blazing Saddles: “I don’t need no steenking badges!”
Whenever someone needs more light, I often respond with "Aziz, light!"from The Fifth Element. I was at an outdoor convention some years ago by the campfire at night when someone asked for some light so they could see to cut up more firewood. The resulting chorus of “Aziz, LIGHT!” was glorious.
Blazing Saddles???
Um, possibly The Treasure of the Sierra Madre?
When I’m playing D&D, any time we are in a scenario to purchase something, I get an urge to say “Ten for that? You must be mad!”
Reference: Life of Brian - scene 7 - "We're supposed to haggle" - YouTube
I used to call a control on a machine at work a “main stem stop wow”.
Whenever my wife overrules what we’re going to do next, my standard reply is a sarcastic “I know: let’s do what you wanna do.” ala Jim Carey.
We do that one for cats who fall down and roll over when you pet them.
I once had a job where I made badges. If I had a dollar for every time I heard that … I’d have a lot of dollars.
I can’t resist “Strange things are afoot at the Circle K” whenever I pass one. (Bill and Ted’s Excellent Adventure)
Yes, Blazing Saddles. He is quoting the mis-quote said in BS. Sorta. The correct phrasing is “We don’t have to show you no stinking badges!” Which isn’t said in TotSM.
Dear me! Are there really people at this site who have never seen Blazing Saddles?!?
And yes, I was the only person in the cinema who got the joke and laughed.
Another one from Fernwood/America 2-Night:
Whenever I hear some contemporary Top 40 songstress wailing “Woo-oo-oo-oo-oo!” ad nauseam, I automatically launch into Debbie Dunbar’s “Las Vegas Lounge Act”: “Oh, baby. Baby, baby. Oh, baby. Baby, baby. Oh, baby. Baby, baby. Oh baby…”.
(My daughter hates it when I do that!)
Any time I hear some obnoxious commercial plugging something like sanitary napkins, I say “Don’t you just love beautiful feet?” Which really was the cold opening of a commercial back in the day.
“Don’t you just love beautiful feet?” was right up there with “The heartbreak of psoriasis!”; “The pain … the itch … of hemorrhoids!”; and “Painful rectal itch!” As far as I’m concerned, they’re all interchangeable.
I used to work in a warehouse, where I’d pile maybe 3000 to 3500 cases of empty beer bottles a day on pallets, which were returned to the brewers, for washing, sterilization, and reuse. It was physical, exhausting, work, and it left me tired at the end of the day.
One day, towards the end of the shift, a co-worker hollered out, “C’mon Spoons, you’re lagging!”
To which I responded, in a calm voice, just like on a current certain TV ad for a feminine douche, “You know, Buddy, some days, I just don’t feel fresh.”
That got a big laugh from my co-workers. It’s been my go-to ever since, when somebody says, “Hey Spoons, you’re slowing down.”
Note that the above occurred over thirty years ago, and at my age nowadays, I’m allowed to slow down.
Would you accept UHF?
When I do something unusually stupid, I will say I’m “as sharp as a bowling ball”
or, of course, “sooooper genius”.
For me, it’s more along the lines of “What won’t trigger a catch-phrase response?”
^ That’s why you became a teacher, isn’t it? Where else could you do that all day long and it seems normal? 
Busted! 
I even have a catch phrase for when the kids don’t get the catch phrase I just used:
“Sometimes, they’re just for me.” Which I believe I stole from Johnny Carson back in the day.
We use a variation on that one: “Fine. Let’s just do ALL the things that YOU wanna do!” in the most sarcastic Jim Carrey voice.
“I just do 'em. I don’t explain 'em” when someone doesn’t get the joke.
Red Skelton used to say it when a joke fell flat.