similar to that's the sound your mother made last night. it also originated from SNL celebrity jeopardy. it was said by Sean Connery and is just another sexual innuendo.
Sean Connery: It's been a long time, Trebek.
Trebek: Not long enough.
Sean Connery: That's not what your mother said last night!
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The question you ask yourself or your friends after a night of heavy drinking. Often, you do not want to hear the response, but need to know if you should apologize to anyone or get checked for STDs.
You usually spend the rest of the day dwelling on the events of the past night and slapping yourself on the head saying "doh!"
yo what did i do last night?
Danced with some drunk chick on stage at the bar and busted your ass
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singing it will out of context will make your friends block you
A: where did you sleep last night?
B: BRO WTF
It litterally means "I had sex with your grandmother last night."
It just removes the word 'sex' to make it shorter, like any other slang term.
Ryan: "Yo man, what were you doin' last night?"
Jack: "I had yer grandma last night"
Ryan: "What the hell man?! That's sick!"
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Something non-football fans say to football fans to fit in. Taken from The IT Crowd.
Moss:
Did you see that ludicrous display last night?
Postman:
What was Wenger thinking sending Walcott on that early?
Moss:
The thing about Arsenal is, they always try to walk it in!
Postman:
Yeah it is true. See you later, Moss
Moss:
Mind 'ow you go.
The famous line that Sans Undertale said in Deltarune.
Your mother, huh? Too late. I already "befriended" your mom last night.
A comeback that people say when someone says, " I bet you are terrible at sex." Or other comebacks. Then that person would come back and say, " That's not what your Mom said in bed last night."
Guy #1: Your dick is probably the size of half of a raisin.
Guy#2: That's not what your Mom said in bed last night.
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