The act of sitting and chilling with your friends. Typically involves activities such as drinking beer and vaping. Physical and intellectual effort is not allowed.
-Dude, u comin over tonight?
-Sure, I'm always down for a good grandpaing.

-Ahh, what a grandpaing, I really needed this
by Cpuny September 3, 2019
Usually a man wiser than your dad, always the head of the family. Sometimes a man who fought a war to protect his own country and family. Always a playa, you know how they do.
All they gotta do is act like the wise man they are and they could get any girl except they got their wife at home.
Grandpa Bob: Want to hear a joke?
Sam: sure grandpa
Grandpa Bob: I never saw a purple cow I never hope to see one, but I can tell you anyhow I'd rather see than be one!
Sam: I don't get it
Grandpa Bob: When you become wiser you will.
by Oz January 18, 2005
and old fogey who knows his shit. totally gangsta. lol
"im bout it, im rowdy, i just passed a kidney stone."
by sketch April 18, 2005
When an elderly man makes an unsolicited creepy sexual advance towards a substantially younger woman.
Being in my twenties, it was disturbing to have an octogenarian make a move on me. I was just like Grandpa NO!
by DeeDoggy January 20, 2019
A male on male handjob typically given after a long period in a body of water (pool, hot tub, lake, ocean). The more wrinkly, the better.
After a lengthy session in the pool, Brad gave George his rendition of the grandpa.
by Honeypizzle May 16, 2009
The father's father. Can be used as a name for a dog that has an "elderly man" personality.
Me and my Grandpa went fishing.

My elderly dog Grandpa hates puppies.
by frabrizio September 24, 2016
Son:"Dad, why haven't I met Grandpa before?"
Dad:"He left me when I was 4 and then claimed that he didn't know he had me when I saw him"
by Adrianthenoob November 9, 2020