on the fin 

Meaning on the 5. Chicago word for 5 is fin. Gang related yes, because all people nation are under the five point star so hence they say on the fin to let u kno what they said is some real shit.

Imma smack that fool, on the fin!

on the fin by p stone December 1, 2015

on the fin 

gang related, similar to saying on my momma or babymomma, except theyre putting whatever theyre saying on this unknown gang term that has apparent credientals

big L, on the fin i shanked that cracka on d block.

on the fin by univrsmnd November 6, 2014

the five finger knuckle shuffle on the one-eyed, blue-veined, purple-headed, custard-chucking, salty yogurt slinger.

Yeah, people actually do use this term, but they get it wrong mostlys.

The five finger, knu... aaawwww, fuck it. I whacked off.

the five finger knuckle shuffle on the one-eyed, blue-veined, purple-headed, custard-chucking, salty yogurt slinger. by Gumba Gumba March 15, 2004

the five finger knuckle shuffle on the one-eyed, blue-veined, purple-headed, custard-chucking, salty yogurt slinger

Masturbation.
In other words:
Choking the chicken
Choking the monkey
wacking off
jerking off
shaking hands with man's best friend
teasing the weasel

Dude, we all know that last night you did the five finger knuckle shuffle on the one-eyed, blue-veined, purple-headed, custard-chucking, salty yogurt slinger.

the five finger knuckle shuffle on the one-eyed, blue-veined, purple-headed, custard-chucking, salty yogurt slinger by Alex Bahder January 27, 2006

the five finger knuckle shuffle on the one-eyed, blue-veined, purple-headed, custard-chucking, salty yogurt slinger.

fucking ur hand intematly or hardcore

i do the five finger knuckle shuffle on the one-eyed, blue-veined, purple-headed, custard-chucking, salty yogurt slinger way 2 often

the five finger knuckle shuffle on the one-eyed, blue-veined, purple-headed, custard-chucking, salty yogurt slinger. by chaseathon! September 22, 2003

the five finger knuckle shuffle on the one-eyed, blue-veined, pink-headed, custard-chucking, salty yogurt slinger 

The process of masturbating

He was doing the five finger knuckle shuffle on the one-eyed, blue-veined, pink-headed, custard-chucking, salty yogurt slinger in his girlfriends car

the five finger knuckle shuffle on the one-eyed, blue-veined, pink-headed, custard-chucking, salty yogurt slinger by Silky Johnston June 9, 2006

the five finger knuckle shuffle on the one-eyed, blue-veined, purple-headed, custard-chucking, salty yogurt slinger.

masturbation; playing five on one, priming the piss pump; playing tug of war with ol' cyclops.

Following his vasectomy, he needed to produce 25 ejaculations over a 6-month period to assure testicular emasculation. In order to do this 25 times, he had to perform the five-finger knuckle shuffle on his one-eyed, blue-veined, purple-headed, custard-chucking, salty yogurt slinger.

the five finger knuckle shuffle on the one-eyed, blue-veined, purple-headed, custard-chucking, salty yogurt slinger. by weave March 21, 2003