Kit Kat fingers are when a person places any two fingers together and inserts them into another humans anal cavity. (usually a gay male activity). Once the fingers have been removed any remnants of shit are acknowledged by each party and swiftly licked clean. This act can be incorporated with the Dirty Sanchez and Portugese Breakfast.
Last night my boyfriend got kit kat fingers before we made love and i ended up with a dirty sanchez.
by Sam 23456 May 17, 2006