swim cap 

To insert ones head into a females vagina

yo last night the girls vag was so big she swim capped me

swim cap by 1231234 February 12, 2009

Swim cap Penetration 

When you roll a condom over the top of your head like a swim cap, and shove your head deep into a woman's vagina.

Pablo: hey, Phil. Did you and Linda have a good anniversary?
Phil: yeah, I gave her a swim cap penetration.
Pablo: wow, that's like a reverse childbirth!

Phil: bitch is pissing like a waterfall now.

Swim cap Penetration by WheezyLegere October 30, 2015

Human swim cap 

When a man lowers his head and the women opens her labia flaps to resemble a swim cap going over someone’s head.

Bert: “So how was your night last night with Gertrude?”
Ernie: “It was good she let me give her the good ole human swim cap!”

Human swim cap by Shaggin waggin February 4, 2023

Pink Swim Cap 

Before sexual intercourse a bald male first shaves off his or the females pubic hair. Then pours a bowl (or glass) of his own semen on his head and proceeds to place the pubes onto his noggin. After securing the pubic hair toupee the man spreads the womans vagina and shoves his head inside of the "Pink Swim Cap".

"Dude when I gave that chick a pink swim cap it reminded me of the days when I had a full head of hair."

Pink Swim Cap by Themailman May 6, 2005

Swimcap 

This is a move best pulled in a warmer environment. The art of pulling your scrotum over your fist, resembling a swimcap.

"When I turned around he was giving me the swimcap!"

Swimcap by medic980 February 24, 2009