An appeal to emotion or some kind of irrational argument by a woman. Usually made to somebody she is involved in a relationship with.
Also used to incorrectly describe proper arguments made by women when her partner is later retelling an argument to his friends.
Dude, she used girl logic on me, there was no way I could have won the argument no matter what I said.
logic used by girls in many occasions that totally go against common logic and the mere obvious.
"a girl tells you a time she will be someplace, add on 5-15 minutes to that=girl logic."
"a girl dresses up as a hoochie but gets pissed when guys hit on her only for the purpose to have sex=girl logic"