Yul Brynner with a turtleneck 

An uncircumcised penis.

Pepe; "Hey John?"

John: "What's up Pepe?"

(Pepe is urinating behind a tree on the golf course)

Pepe; "Come over here and check out Yul Brynner with a turtleneck!"

Yul Brynner with a turtleneck by gamisiking August 6, 2016

Boxing Yul Brynner 

stimulating your penis with your hand or hands to cause orgasm and ejaculation. Male masturbation.

Putting his fists up to engage in a round of rubbing one out he notice that his cock kind of looked like Yul Brynner's Bald head from behind as he start to stroke..... Just then I get a call for one of my buddies they ask, "waz up"? and I say, " just sittin' around BOXING YUL BRYNNER".

Boxing Yul Brynner by Yo-B-Dawg May 15, 2010

polishing Yul Brenner's head 

Masturbatory term.

My mom said I'd grow hair on my palms if I kept polishing Yul Brenner's head, but I'm determined to wear that hair off.

polishing Yul Brenner's head by Soon 2. B. Unemployed March 18, 2011

high-fiving yul brenner 

Male masturbation

Little Jimmy's mother caught him from "high-fiving Yul Brenner" again.

high-fiving yul brenner by Yul June 4, 2003