Brake his Grandpa's Cane 

A phase invented for females to use instead of Smash the Granny, meaning to have sex, fuck, bonk or shag.

"Are you going to have fun with that guy tonight"
"Yeah, I'm going to Brake his Grandpa's Cane"

"He said he wanted to Smash the Granny out of me, what he didnt expect was for me to Brake his Grandpa's cane before he could even undo my braC

Brake his Grandpa's Cane by Mathias Leonardo May 19, 2010

How old is your grandpa? 

A way to ask someone what score they got on a test. Used in the presence of teachers who don't want students sharing their test results.

Prima: Hey Dave, how old is your grandpa?
Secunda: 88. How old is yours?
Prima: 100.
Secunda: You son of a bitch.

How old is your grandpa? by Schlang April 16, 2008

Uncle grandpa 

You have intercourse with you’re mom and have a sister, then have intercourse with her and her child will become your grandson/granddaughter and it will be your sisters kids so your also a uncle grandpa

Let me tell you the story of how I became Uncle Grandpa

Uncle grandpa by I hrhejejdb June 3, 2019

Ketchup Grandpa 

A term used to refer to men that wear stained undershirts and are typically associated with perverse behaviour and interests. Ketchup Grandpas are known for their grunting and licentious propositions.

"Man, Greg is such a Ketchup Grandpa."

Ketchup Grandpa by Uncle Fingerz December 14, 2012

Your grandpa a trap 

No insult surpasses this one. It is the ultimate roast.

Brock: ur mom gay lol.
Adam: stfu Your grandpa a trap.

Your grandpa a trap by JJSTUDIOSIZATION May 10, 2018

Asian Grandpa 

A fucking dumbass cook who likes touching you and loves singing some moaning shit like "AYYYYYYYYYYYOAH!" They typically live with you and your parents and don't give a shit about your life. Asian Grandpas would typically wear a polo t-shirt outside during the summer and would always wear tank tops at home. During the winter they would wear cashmere vests and long sleeve t-shirt found in Costco.

"You have such an Asian Grandpa"

Asian Grandpa by AsianChan69 September 1, 2020

sad grandpa 

Sad grandpa is to be said when anyone is getting ready to change. It is a sign to all other people in the room that clothes are getting ready to fly, and to close all doors and to look away if you don't want to see "the goods."

Hey guys I gotta get ready for practice... sad grandpa.

Alright man, I'll get the door on the way out.

sad grandpa by Blackhawk's fan March 15, 2010