Top definition
The act of uncontrollably laughing, or having a giggle fit, at something that could actually be funny, or possibly not. A haver of a sillygasm will convulse while laughing, grab on to things tightly, and can not be easily stopped, as if they were having an orgasmic experience.
Guy: The joke wasn't that funny, but she just started having a sillygasm, I think she was drunk...
by moviesdude3 April 10, 2007
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Aug 6 Word of the Day
Used often in the business world, this incredibly versatile phrase can be literally translated as "fuck it."
The client changed the deadline to today? Well, it is what it is.
by A. Danish November 27, 2007
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When one is overwhelmed by the amount of Silly-Bandz one has or the amount a store has in stock!
Mallory got a SILLYGASM because Michael showed her all his 392 Silly-Bandz.
by Mikex4 July 19, 2010
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