Any time someone mentions a drive thru, I do Leo Getz: “they fuck you at the drive thru.”
I do physical things.
To, “Follow me, or walk this way”. I do the foot drag shuffle. Believe that’s from Eye-gore.
To, “Get the light, or turn that off”. I do the clap, clap. From the commercial for the Clap on Clap light.
I had a hard drive named “Stone Knives and Bearskins”.
I myself robotically repeat “the grea’er good” when someone else says it.
However… quoting isn’t a substitute for good conversation, and if you rely on quotations for your humour or quote too much and get mystified glances in return, you may want to rethink your approach. It’s a pet peeve of mine, since my partner quotes so often that I’ve had to ask him to stop so we can actually have a real conversation instead of just talking about why he quoted something and where it was from.
Surely there must be a movie catch phrase that everybody uses.
“Ruh-roh!”
Apparently Astro, not Scooby-Doo
I doubt it.
And don’t call me Shirley.
“I wish I had said that”. “You will Oscar, you will”
“I have a bad feeling about this.”
Whenever (or at least fairly often) I hear someone mention feeling bad, I quote in my head Conrad Jarret from Ordinary People where he’s discussing with his psychiatrist his state of mind: “I feel bad about this, I feel really bad about this, now, just let me feel *bad *about this!”
ETA: There, Mike Mabes, one finally came to me. 
Okay, Mabes, I’m rolling: They just announced that Andrew Yang was ending his run for the Democratic nomination. Whenever something totally expected is announced, I’ll say in the voice of Lloyd Christmas, “I didn’t even see it coming!!”
At the end of the work day I like to say “Screw you guys; I’m going home!” like Eric Cartman. I recomend making sure your coworkers understand the reference first, though.
My wife and I can not say “disappointed” without saying it like Kevin Kline in Fish Called Wanda.
We can not point out anything related to bananas without saying the line from Fierce Creatures, “Not a lot! Couple of bananas!”
We can not say “not for me” without quoting it like Riddick in Pitch Black. “Not for me!!!”
At the New Hampshire Democratic primary, Amy Klobuchar just said, “I’d like to thank our staff…”. I said, like Neil Young when he is addressing the crowd at the end of the “Rust Never Sleeps” video, “I’d like to thank our staff…our research staff…”.
Someone says, “Well, the first thing you know…”
“Old Jed’s a millionaire, the kin…” and this is where I trail off because no one ever gets it.
…Steve Clone and Steve Clone
Whenever I hear someone ask for anyone’s surname, it takes great effort for me not to blurt out “Sir Jethro.”
Every time I get involved in a “Happy Birthday” sing-a-long, I use my best Marilyn Monroe imitation and address them as Mr. President. Some of my friends are not amused, but I can’t help myself and MUST do it every time.
Any time I see a Warning sign I want to start moving my arms like the Lost in Space robot.
I wish I had a dollar for every time Ms. P has had to see me do that or say “you might, Rabbit; you might.”
I once almost said it to a county commissioner while presenting a case at the podium in a public hearing.