When a grandpa gives you head (no dentures) in the restaurant parking lot, and then afterward you get a Werther's Original from em.
"Dude, did you see that chick getting a Backseat Grandpa?" "No, hurry up the restaurant just texted me our table is ready."
by JohnnyFibblethips January 20, 2025
Get the Backseat Grandpamug. 
grandpa father is defined as: because my grandpa is my father im mentally retarded, but still more intelligent than every fuckboy that is reading this now
by datboroboy January 15, 2017
Get the grandpa fathermug. Grandpa Lore: Another step above Dad lore. Stories that are told to grandkids but not your children. Stories that are unhinged about your life before or after your kids are born.
One day at the lake with the family
Grandson: Pop Pop can you tell me a story
Pop Pop: Well kiddo this one time I smoked a joint before your dad came home from school and I was so high that I left him outside to play with the other kids while I ate all of his fruit snacks and watched Spongebob. and that's why kiddo, drugs are bad.
Dad: *internal thoughts* "That asshole did eat my goddamn fruit snacks."
Grandson: wow that's some grandpa lore.
Grandson: Pop Pop can you tell me a story
Pop Pop: Well kiddo this one time I smoked a joint before your dad came home from school and I was so high that I left him outside to play with the other kids while I ate all of his fruit snacks and watched Spongebob. and that's why kiddo, drugs are bad.
Dad: *internal thoughts* "That asshole did eat my goddamn fruit snacks."
Grandson: wow that's some grandpa lore.
by IllUwUllI December 28, 2023
Get the Grandpa Loremug. (weather grandma for a woman): an offensive term for a person who is always quetching about, as the name suggests, the weather.
I decided to coin the term weather grandpa based on my personal observation that it's mostly old grumpy grandmas and grandpas that quetch about the weather. Not only that,but everybody hates a weather grandpa especially when the person doing the complaining doesn't understand that they can't do a rat's ass about the weather.
by Sexydimma February 5, 2017
Get the weather grandpamug. When you soak your hand in ice water till it turns wrinkly cold and numb and then masterbate with that hand.
by Hahaha bad July 13, 2023
Get the Dead grandpamug.