The feeling of extreme exhaustion the comes over you right after long session of masturbation.
Man, I was on the interwebs last night looking at porn and went to bed fappergasted.
by whcgonzo November 11, 2011
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When your about to bust while whacking and the camera to the guy busting causing you to miscalculate your orgasm
I should've watched the finale before blowing my load so I wouldn't get fappergasted
by Trevor Weinberg September 05, 2017
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