1 definition by Jalex123
The act of forcibly inserting one's genitalia into the mouth of a partner, with consent. The key to Tiffing is two-fold: achieving an angle such that pleasure is maximized for one party, and diminished for another; and making eye contact so the party Tiffing can verify that the party being Tiffed is in fact still alive.
"Dude, things got out of hand last night, I totally got the perfect angle on that slut when I tiffed her."
by Jalex123 February 18, 2014