Grandpas attic 

Unscrewing the air conditioning vent and placing feces inside the duct and then replacing the vent.

Jay did an Upper Decker at Caseys house, so Casey got him back with a Grandpas Attic... Jay doesn't mess with Casey anymore.

Grandpas attic by synasthetic December 25, 2010

grandpagasm 

n. The noise you would expect your grandpa to make when orgasming.
v. The act of making grandpa's orgasm noises during intercourse when your mate least expects it, in an attempt to completely eradicate their sex drive.

--Bro, I'm trying to figure out how to get rid of Kaya. She's so clingy I might just have to grandpagasm that bitch.

grandpagasm by Zmackdavis April 29, 2015

grandpas old cough medicine 

Booze in general. Usually in something non alcoholic like hot chocolate that he gave to your dad to make him shut up

"Honey, Jimmy is crying again"
"I'll give him some cough medicine"
-grandpas old cough medicine

grandpas old cough medicine by Psychedelic shrooms July 24, 2015

Grandpairing 

Driving or walking or performing anything physical very slowly like a Grandpa/ma.

Hey Steward. Why are you Grandpairing. You drive like a pair of Grandparents. You drive so slow! "Put your foot on the pedal Merrell!"

Grandpairing by Hey y'all! March 12, 2018

grandpam 

It's it the word grandpa and grandma said together.

It's the short for grandparents.

Misha: where are you going this weekend?

Biscuit: to my grandpam's place.

grandpam by Strawberry_ September 13, 2019

grandpaidis 

Feeling pain in joints, back, bones, muscles in ages below 30. Feeling like napping midday and having to wear a diaper

Damn my knee is killing me must be that grandpaidis i diagnosed myself with

grandpaidis by Grandpaidis March 3, 2021

Uncle-grandpas

A term used to describe pyjamas only an old man would wear.

Did you see John last week? He ran across the street in his uncle-grandpas!

Uncle-grandpas by GrandpaJoe1240281 October 29, 2020