In beer pong, when you get a rerack, a sloppy grandma is simply a sideways triangle (using only 3 cups).
Hook us up with a sloppy grandma bro.
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To uncontrollably crap your brains out.
Mike got so high, he pulled a Sloppy Grandma on his mom's couch.
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It is when you get a blowjob from an old woman without teeth
"hey dude i got a sloppy grandma from mikes grandma last nigt"
"damn bro what the hell"
n. someone who always has to run to the restroom; or someone who uses your restroom and then proceeds to crap uncontrollably all over the floors, tub, sink, hand towels, etc.
Sloppy G's are gross...i should know
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