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Define Grey Matter Meaning

Grey Matter
An insult commonly used to degrade a person’s intelligence

Wow that Jim has a lot of grey matter up there.
By Natassia
Grey Matter
A very drab person who wears long, dull, grey attire. Their personality suits the wardrobe.

Billy: Ugh... it's grey matter again.
Sally: She's so boring.
By Jewel
Grey Matter Splatter
-verb.

to engage in the act of ejaculating onto the cranium of a well educated individual.

-"...when I get a hold of that naughty little Physics student I'm gonna splatter on her grey matter...Hoo Yaaahh!!"

"...when he pulled out last night I expected a facial cumshot...but no, he proceeded to splatter on my grey matter....how uncouth!!"

*grey matter splatter...when a dumbass bitch just won't do...*
By Hally
Grey Matter Core Sample
drilling a hole in someones skull and fucking their brains out.

well Lary i guess im going to have to give your wife a grey matter core sample for letting Fluffy crap on my lawn again!
By Bab