being attracted to someone else while you are in a relationship, yet do not take physical action on your attraction to them.
Joe - "I'm going out with Anna but I've been so fucking attracted to this other chick i met at the party last week"
Jack - "yea man i think that's called mental cheating, sort that shit out"
Jack - "yea man i think that's called mental cheating, sort that shit out"
by cakescake January 2, 2011