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."
(n.) The highly pleasurable sensation of slowly and delicately peeling off a tender ripe scabling, and then repeatedly picking it off again with every scabic regrowth, much to your sensualdelight.
When that place I pick on my scalp gets nice, dank n crusty, I'm gonnalight some scented candles, turn on some Sade, and have me a scabgasm.