Grandpa's Sleepytime 

Three to Five shots of vodka, 20ml of NyQuil (preferably cherry), and an energy drink of your choice (Nos, Red Bull, etc.)

Man, that Grandpa's Sleepytime had me on my A game.

Grandpa's Sleepytime by poppa eddddd March 2, 2011

grandpa's cough medicine 

Another name for an alcoholic beverage of any sort.

"You boys been doin' a little boozin', have ya? Been suckin' back on grandpa's ol' cough medicine?"
-PA state trooper on "Dumb and Dumber"

grandpa's cough medicine by Nick D May 19, 2004

grandpa's guitars 

A term used in the show Metalocalpyse on Episode 1.4 (Dethtroll) by Toki and Skwisgaar to describe old-fashioned, ancient, out of style accoustic guitars- which according to them, should be avoided at all costs because they're apparently for pussies and grandpas. It can be used in the singular and plural sense, due to its pseudo-Nordic roots.

Murderface: What are those wooden things? Chairs?
Barkeep: They are acoustic instruments.
Toki: What is acoustic? Oh, you mean a grandpa's guitars?
Skwisgaar: A grandpa's guitars? That's for pussies and grandpas. I think you know it.
Barkeep: It's your only choice, I'm afraid.
Pickles: Whoa, this is a tough one guys.
Nathan: Pickles is right, we have a tough choice. Playing acoustic is totally lame and not metal. But then again, if we don't put that troll back to sleep, we may never be able to check our e-mail with high-speed DSL again.

Toki: THE GRANDPA'S GUITARS ARE SMASHEDS!!
Skwisgaar: (referring to lake troll) Dudes, here comes that guy!
Nathan: Wait! The phones! Use the Dethphones! Throw them at that guy!

grandpa's guitars by VioLush May 20, 2007

Grandpa's Gift 

The act of submerging your hands into water for an extended period of time allowing them to become wrinkled, then proceeding to finger a girl with your wrinkled hands.

Man 1: "Dude, how was your date with Vicky?"
Man 2: "It was alright. We got in the hot tub, then I totally gave her Grandpa's Gift."

Grandpa's Gift by Glenjamin' July 10, 2010

Grandma's gone to bed

An expression used to hint that a certain idea is obsolete and anyone in their right mind would retire it immediately.

Person 1: I heard all gays are pedophiles too.
Person 2: I don't think anyone's believed that since the 60's.
Person 1: Really?
Person 2: Yeah. I think grandma's gone to bed on that one.

Grandma's gone to bed by helyllefilten July 14, 2016

Grandpa's War Helmet 

A colloquial expression referencing the penile cock head of an old, perverted male.

I've been watching you all night. Are ya interested in seeing grandpa's war helmet? Get away ya perv.

I'm done showering at the gym. I'm surrounded by grandpa's war helmets in there. I'm afraid ones creeping on me.

Grandpa's War Helmet by Eaton Holgoode March 17, 2017

grandma's boy 

one of the funniest movies i've ever seen. a must see film, with its ridiculous drug, sex, and party scenes. produced by Adam Sandler, features cameos from Rob Schneider and David Spade.

quotes from grandma's boy:

Jeff: I can't believe you came on my mom!

Grace: I gave Charlie Chaplin a handjob.
Jeff: Wow, was he silent?
Grace: Not after I got through with him.

Grace: How old are you now?
Alex: 36.
Grace: Do you have a girlfriend?
Alex: No.
Grace: My grandson's gay too. I'll give you his number.

grandma's boy by KRHimself May 12, 2006