Scrotumboat 

When your sex partner let's you straddle their nose with your balls as they move their head side to side. Not to be confused with motorboating a pair of tits.

That girl I was with last night was crazy she did everything under the sun, she even scrotumboated my balls.

Scrotumboat by Big Daddy Koon July 6, 2017

scroterboat 

Whilst manipulating the scrotum with your mouth, shake your head back and forth making a "motorboat" engine sound.
It's the male version of the motorboat.

Last night, Janine was circumnaviagting my scrote and then she went crazy and scroterboated me. I may now marry her.

scroterboat by Capt Scotty October 2, 2007

Scrotorboat

The act of motorboating applied to a scrotum.

"She scrotorboated me when she went down on me last night"

Scrotorboat by ShiftyJack November 25, 2009

scrotorboat

Verb: to motorboat someone's ball sac as though it were a woman's cleavage. Scrotorboating is not exclusive to the nuts, and can even include said activity on someone's taint.

"Please just go down on me. When you scrotorboat me, it tickles and I lose focus!"

scrotorboat by FeralBuddy October 13, 2011

scrotorboating

Pressing one's face into and around a man's testicles, and going "bbbbpppbpbpbpmmmbpbpbphhhphhphh"

Watch out man, she'll scrotorboat you.

Dude, I love scrotorboating. I go ever other Friday.

scrotorboating by sarbs December 21, 2013

Scroterboating 

Scroterboat, scroterboating, scroterboated. The word was created in lakewood ohio during a shift at the winking lizard tavern. To scroterboat one is to perform the act of placing the face of one person in the scrotem of a man thus performing the motorboat action creating the scroterboat.

Mr. Mcristall had taken off his pants, when a small hispanic man came up and performed the scroterboat.

The hispanic likes scroterboating

I had been scroterboated.

Scroterboating by THE BLACK RINGGGGGG August 18, 2011

scrotumization 

Is the incubation of the male sex organ the scrotum.

Scrotumization is the new way of life...

scrotumization by Scrotumization May 31, 2009