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It's the word mother fucker and bullshit put together but instead of saying mother bullshit you say MUDDA BEWLSHIT cause it makes you sound cool fam
Boy: I ran over your cat

Girl: THATS THE MUDDA BEWLSHIT
by Semu January 08, 2016
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Jun 27 Word of the Day
She thick but you can tell it’s a bbl
by Ynfm June 04, 2019
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