social piranha means: Socially retarded is a term that can be used to describe someone who is not only socially awkward but also socially marginalized. It’s a play on the word “social pariah”. (in Community Dictionary, added by Miranda Holland)

What else does social piranha mean?

  • Miami’s rock band. Named after a Malapropism called “social pariah”, a term that refers to a social outcast. The name of the band is satirical in this instance. (in Community Dictionary, added by Cottarme12345)