1. The act of fingering a girl using four fingers.
2. A word to describe a large/loose vagina.
1. "Man, you won't believe what happened last night! I did the four fingered kitkat to 2 girls at the same time! That party was blazing!"
2. "Yeah dude, last night was mental! I was about to get with Laura when she whapped out her four fingered kitkat! Even I wasn't drunk enough to tap that shit."