Don't Forget To Refuel Your DeLorean 

A phrase used in response to someone starting a new thread/conversation/tweet/etc... about a topic/website/video/etc... that was discussed ad nauseum by the rest of the civilized world a number of months/years ago.

The phrase is derived from the Back to the Future trilogy of movies which involved a DeLorean that could travel through time. The plot of the first movie in the trilogy revolves around the main character becoming trapped in the past when he can't refuel the DeLorean.

Moron: The Cake Is A Lie!

Reply: Welcome to two years ago... Don't forget to refuel your DeLorean.

Don't Forget To Refuel Your DeLorean by Etragorn December 23, 2009

don't forget to like and subscribe

A ploy used by Youtubers to try to increase their likes and subscribes.

Youtuber: Don't forget to like and subscribe!
Person A: Can Youtubers stop saying this?
They'll only like and subscribe if they like your content!

don't forget to like and subscribe by ChameleonDragon February 16, 2018

Don’t forget to wipe! 

A common send-off in the morning by one spouse to the other now that we continue to work long into old age and may need little reminders here and there.

Bye dear, have a good day and don’t forget to wipe!

Don’t forget to wipe! by Dr Bunnygirl September 4, 2020

don't forget the coffee

An expression used to present your assumption that a person will be giving a blow job. Originates from the movie Good Will Hunting

You know, I was on this plane once, and I’m sittin there, and the captain gets on and does his whole you know “we’ll be cruising at 35,000 feet,” but then he put puts the mic down and forgets to turn it off. And he turns to the co-pilot and he’s like “you know, all I could use right now is a fuckin’ blow job and a cup of coffee.” So the stewardess goes fuckin’ bombing up from the back of the plane to tell him that his microphone’s still on and this guy in the back of the plane’s like “hey hun, don't forget the coffee”

don't forget the coffee by Shoft December 25, 2009

Don't forget to bring a towel 

An amazing thing to randomly say.

Don't forget to bring a towel

Don't forget to bring a towel by Chr15 July 28, 2006

Don't forget, Lady Gaga has a penis 

Used to cheer someone up.

When life gets you down just remember that nothing is worse then being a famous woman and have your penis fall out of your skirt on stage.

Guy 1: Hey dude I know you just lost your job, but don't forget, Lady Gaga has a penis.

Guy 2: haha thanks man, ya I guess it's not as bad as that!

Don't forget, Lady Gaga has a penis by anti_virus347 November 15, 2009

Don't forget to bring a towel! 

Something much more than a "random saying"
Used as common slang among reefers
Made popular first heard by Towlie episode 8 season 5

"wanna get high? don't forget to bring a towel!"

Don't forget to bring a towel! by towlie:D October 21, 2009