A lecherous old man. Clever and probably killed a lot of people in the Vietnam War.
Oh god Grampy’s coming over tonight?! Warn the neighbors after what happened last time....
by OD1N99 October 13, 2020
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noun: one, usually being a grandpa, who excels are barbecuing.
My Grampy will BBQ for you!
by Suckafishhh November 16, 2008
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Adjective: The attitude one exudes when having menstrual cramps, and being grumpy (ill-tempered, irritable, grouchy) because of it: Grampy.
Example: Sorry I was so Grampy this morning, baby, but I have PMS, and my cramps are really bad today.
by Fatboy67 September 28, 2013
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One having a big bush, the bush is very big due to it being left for months on end without tending too. Therefore, giving one a grampy bush
"Good thing you told me about having a Grampy Bush or else i wouldnt be able to wheel so many broads"
by Chuck Biggs February 18, 2007
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An old man's course, gray pubic hair. Typically found on the rims of public toilets and urinals as a result of natural hair loss during the aging process.
Frank called custodial services to report an excessive amount of Grampy's Whiskers in the office men's room.
by Eaton Holgoode September 30, 2015
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A vigorous hand job administered by an elderly male or, in cases of family fun, your grandpa.
Dude lets go drinking at Old Tymers tonight.

Why? It's full of horny old men.

I know. I got a Grampy's Handshake last time I was there.
by Eaton Holgoode October 26, 2015
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