gurneygasm 

when you cum in someones mouth with such ferocity that it gets caught in their throat and they choke. you then proceed to give them CPR (cardio pulminary resuscitation) and you suck the cum out and swallow saving their life.

i almost killed jane from the gurneygasm i gave her last night. it was pretty scary

gurneygasm by harro dero April 8, 2007

Greygasm 

When anyone, while reading 50 Shades of Grey, has an orgasm.

Oh my gosh! So I was reading the first book of 50 Shades and had at least 3 greygasms!

Greygasm by FortuneWookie July 23, 2012

Greygasm 

The intense pleasure derived from organisation, removal of unnecessary clutter, and streamlining systems. Coined in reference to CGPGrey

I just cleaned out my desk and removed all the old stuff from my computer, it gave me such a greygasm

Greygasm by Egrith April 17, 2017