1. When one is sexually aroused by shocking or scaring those around him or her.

2. When one is sexually aroused by being shocked or scared.
1. "Holy crap, I had the best scaregasm last night when I jumped up behind my foster parents' bed while they were skronking, screamed cookie monster vocals and blew that airhorn!"

2. "Man, when me and my girl were watching that horror movie and screwing last night she said she had the best scaregasm ever."
by ArcticPhantam July 13, 2008
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