Top Definition
The physical manifestation of an idea so wonderful that it sends waves of ecstasy from the ears to the tips of the toes.
Judy: Hey, you should quit the band for a year and be a Big Brother.
Phillip: (writhing in ecstasy) Holy cow that is such a good idea!!! I think I just had an ideagasm.
by spock11384 July 31, 2008
when a person screams and freaks out about a really fun idea
i have like 5 ideagasms a day. Theyre quite amazing
by Affe March 12, 2008
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