What is Mother-shut-your-mouth?
1.
A way to say 'mother fucker' without being offensive and vulgar.
Suppose you're with your grandma at her usual bing spot. One of the elderly spills his drink all over your back. You yell "Mother-" but catch your felf and say "Mother-shut-your-mouth". You are now the sweetest person for not cursing.
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1.
A character from the Simpsons who works as a bartender and gets prank called by Bart Simpson.
Moe Szyslak : "Is There Butts here S..
