What is I Had Yer Grandma Last Night?
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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!"
See
Random Words:
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to be deserving of props
that was very w00tworthy..
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holy!!!, omg!!!, fuk sake!!! ,
oochamamm that hurt, oochamamma he/she is so sexy!!, oochamamma im so board!! OOCHAMMAMA!!!!! nikkis wor..