The additional act of fellatio performed at the end of a massage, typically costing around $20.00.

Also can be used to describe a slutty or promiscuous woman.
I went down to the rub and tug to get a massage and the massuse gave me a 20 dollar hot mouth!

That bitch is such a fuckin' skank. She fucks everyone in town....what a $20 Dollar Hot Mouth.
by Dr.Purell December 31, 2011
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