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1.
(n)- To ejaculate uncontrollably during any given time
Johnny had a spasmgasm during his committee meeting.
by John Kellis Fernando January 04, 2007
49 8
 
2.
When the sound of one's orgasm most resembles the sounds he/she would make when having a seizure.
Last night my girlfriend had a spasmgasm. I thought a baby seal was dying.
by AxelScar December 21, 2009
9 0
 
3.
An involuntary bodily spasm resembling the pleasant sensation of an orgasm in another part of the body that would not usually experience orgasm.

adjectival derivatives:

spasmgasmic
spasmgasmical
spasmicgasmic
spasmicalgasmical
I am having a spasmgasm in my neck!
by Kendal Boy March 07, 2008
7 2