(rhetorical question, informal, sarcastic) Used to indicate that the other person's speech has become too obscene or vulgar.
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No wonder then that I felt compelled when coming upon Tony and John's contest-in-insults to glare and say, "Hey, you kiss your mother with that mouth?"
"Chris doesn't like my hair up. I don't like my hair up. I'm not wearing my fucking hair up." ― "You kiss your mother with that mouth?"
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1998, Anna Quindlen, Black and Blue, Wheeler Pub., page #153:
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Serena, always the charmer. Do you kiss your mother with that mouth?
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2004, Tim McCleaf, For They Know Not What They Do: Two Novellas, iUniverse, page 64:
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"You kiss your mother with that mouth?" mocked the man-who-was-ten. Matthew replied, "No, but I kiss yours!"
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2009, Ryan Russell, Johnny Long, Timothy Mullen, Stealing the Network: The Complete Series Collector's Edition, Final Chapter, and DVD: The Complete Series, Syngress, page 469: