A type of elderly coworker that has years of experience in any and all things. All knowing. Shamanistic in their behavior. Wise. Knowledgeable. Old as fuck. But really cool. Has the funniest stories of the old days. Makes you laugh until you piss yourself. Still Parties hard!!!
My work grandpa told me a story about how he uses dating apps on his new phone to get laid.

Work Grandpa went to the Canadien Woodstock in the 60’s and did acid, reefer and mescaline for days.
by Bleepblow February 19, 2021
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Grandpa hour tends to be the last hour of the day and affects men's cognitive and physical abilities. In summary, it is when men truly feel their age (and in many cases feel even older). Typically Grandpa hour sets in at around 30 years old but has been known to affect men as young as 25.
* Three thirty-somethings playing an online first person shooter against much better, young opposition

Michael - Where should we head to next?
Mark - How about this area?
Tom - Shit! There's players on the map!
Michael - Tag them Tom! Fucking tag! Where?!?? The map is huge!

Mark - Of course there's players you twat! There's 150 of us!
Michael - Ah hold up. It's 10pm. It's Grandpa hour. He can no longer do words. In fact, we're all fucked now.
by MrTeacherMan August 13, 2020
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A 'Grandpa Hitler' refers to the act of finishing upon the upper lip in a clean, solid block
He could not hold it in any longer, and burst out laughing. She rushed away and was met with a strange image in the mirror, what she could only describe as a Grandpa Hitler.
by IKnowThings69 May 31, 2017
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When you want to read an Urban Dictionary definition, but you realize your Grandpa is here and need to clean it up
I was going to read the definition of vacation dick, but I realized my grandpa is here
by BillyBSevenOne July 3, 2022
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A male narwhal that is old and has kids that had kids
Wow that grandpa narwhal is being so nice to his grandchildren
by Grandpanarwhalpu May 31, 2018
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a term used to describe a showing of a woman's vagaga.
"if I drink anymore I'll be showing everyone here grandpa in the yard"
by thelod June 25, 2008
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