Top Definition
While fish hooking a girl's mouth, you gently place your asshole into her mouth and then proceed to let a big one rip in her mouth, filling her mouth with dirty farts. Finish the philthy heff by closing her mouth and making her swallow your backdoor breeze.
School girl Cindy was being a naughty girl in law class, so the teacher asked her to come after class for a good old philthy heff.
by JBB#4 January 27, 2009
5 Words related to Philthy Heff

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