Top Definition
n./ 1. An almost instantaneous sense of heightened arousal, usually followed by an equally fast decline of interest when not acted upon. 2. Sudden feelings of uncontrollable lust, then disinterest.
'I hate when I'm home alone having fuckflashes.'

'What is those?'

'When I get super horny and want to fuck, but by the time I get someone, I don't care anymore.'
by Dicari April 17, 2014
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