It's what happens when your mouth is dry and you get a buildup of white stuff on the corners of your mouth. Named after Mrs. Chaffin; a math teacher in ardmore alabama.
I got done with soccer practice and i was chaffin like a motherfucker.
by Matt Moore2 August 15, 2008
when a girl sucks dick so violently that her lips start peeling.
"Daaammmnnn girl, if u dont stop bein such a fuckin chickenhead u'll have chaffin' lips"
by Mike Bayer October 01, 2005