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
The crease of your pants, separating where the two balls are, stretching the sack like a frogs webbed foot.
I looked down at my boyfriends egregious frog's knuckle and told him he needs to go a size up because his nutsack was showing
I saw Tommy doing the nine ball knuckle shuffle yesterday in his room. He really needs to stop jacking off on weekdays.
The shaft tucked into the scrotum, creating buss knuckle flaps.
He proceeded to tuck his Buss Knuckle but did not prevail.
Tribadism or tribbing, commonly known by its scissoring position, is a lesbian sexual practice in which a woman rubs her vulva against her partner's body for sexual stimulation, especially for stimulation of the clitoris.
She is a knuckle wrestler, and loves women.