gutter mouth

gutter mouth

A tendency or proclivity to use coarse, rude, or vulgar language. I don't know what you're letting your son watch on television, but he has quite the gutter mouth for a fifth grader. My grandmother is the sweetest old lady you'll ever know, so her gutter mouth never ceases to shock people! That gutter mouth of yours is going to get you in trouble some day. Not everyone thinks language like that is acceptable!

See also: gutter, mouth

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