Top Definition
When a 700 + pound, African American man breaks down your front door and proceeds to punch your mother in the face so hard that she crashes thru the nearest wall.
" Man !! Did you see Big Brian fuck that bitch up?"
" Hell yes !! That was a severe Momma Shmack !! I hope she makes it out of her coma."
by Bel Aire Beeryan April 08, 2010

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