Two Knuckle Shuffle 

The Two Knuckle Shuffle is where a man shoves his 2 knuckles all the way up another man's asshole and starts taking his 2 Knuckles and the other man slowley starts clapping.

Whoa that guy is giving him the Two Knuckle Shuffle!

Two Knuckle Shuffle by Nigton3000 December 5, 2018

Two Knuckle Shuffle 

When you use your index and middle fingers knuckles (proximal interphalangeal joint) to rub a woman’s clitoris in a side to side motion.

John: So, did you and Angie have any fun last night?
Gave: yeah, she really loved it when I gave her the ole’ two knuckle shuffle

Two Knuckle Shuffle by ElevenToesJohn April 5, 2023