A politer way of saying to a friend, i'm going to fuck your sister then sloppy jizz over her tits
Dave: Bobby, since you wouldn't make me a brew its Time To Chuck My Muck Over Your Sister's Jubblies
by Greg_the_Smeg February 07, 2019
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referring to a mans cum.
“went out last night, brought a girl home and chucked my muck up her”
by elliehainesxxx June 03, 2019
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