a somewhat negative term for a person who is socially retarded (not literally), awkward and an outsider in everyday social situations; a pun on 'social pariah'.
"Did you see Dave last night at the party? He has no sense of decorum whatsoever! What a social piranha!"

"Oh no! I'm a social piranha!"

Someone like Larry David in Curb Your Enthusiasm is a social piranha.
by Projekkt December 28, 2008
Top Definition
A rock band from Miami. The name comes from a malapropism of "social pariah," a phrase that denotes a social outcast. In this case the name is a satirical take on society and the band's political sensibilities.
Social Piranha is playing tonight!
by Diodisegno January 06, 2013
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