Shattered Mast 

N. When a girl who is riding slips off and crashes down on the mans erect penis, shattering his "mast" like the tentacle of the mighty kraken

"Wanna do some squats breh?"
"No thanks, still sore from a shattered mast"

Shattered Mast by Mundungus Waferbop July 25, 2016

full mast

a fully erect, hard penis and also a mens health clinic that treats erectile dysfunction with shockwaves

As soon as she touched him, boing, it sprang to full mast.

full mast by TomBanana January 31, 2019

Full Mast

A complete and full erection of the male penis

As opposed to a "Half Mast" or "Semi" when the male is slightly aroused or drunk, and unable to achieve "Full Mast"

"Yasmine baulked as Franks Full mast loomed into view"

"Now at full mast , Greg was emabarsed and could not stand up to get off at his desired bus sop"

Full Mast by Ben L 64 November 7, 2006

half mast 

When you are half way on your way to a boner.

He was turned on half mast.

half mast by artsyfartsygyrl May 1, 2006

Sailors Mast 

Purposley masturbating so furiously to the point of such exhaustion that you vomit all over your own erect dick at the point of orgasm.

Dude, i totally walked in on jamie puking all over his own dick.

ahh, pulling a sailors mast i see, I'm impressed, i assumed he was impotent

Sailors Mast by Dickjob McHawkins May 26, 2010

Ship's Mast

To tie belts to both front doors of a car. Then while speeding, climbing out through the passenger window, grabbing the belts and laying on the hood at high speeds. As seen in the movie Grindhouse.

Kim: owh hell no! you said were were never, ever, going to play ship's mast again!

Ship's Mast by Saint921 April 14, 2007

flag at full mast 

an erection, a boner, a woody

As he went to hug me good-bye, I could feel the flag at full mast, and I thought, 'maybe I should stay.'

flag at full mast by elvette July 20, 2006