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The crusty bits at the side of one's mouth after he/she,(usualy she)has been yapping for far longer than ever humanly necessary.
"blablabla shopping,blablabla shoes, blablabla hair"

"Jesus Christ, she's even got salch in the side of her mouth shes been talking that long!"
by TLI Edinburgh (JJ&Y) July 10, 2008
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