Top Definition
When you have anal sex with a partner and upon withdrawl, either you have poop dick or they shit the sheets. You then wrap the shitter in the dirty sheets and toss them outside or you wipe your dirty dick in the sheets then wrap the shitter in the sheets.
Don't have sex with Ken. I heard Jimmy fucked him and then had to give him a Dirty Mummy afterwards cuz Ken shit the bed.
by Theif in the Night January 26, 2009
5 Words related to Dirty Mummy

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