Top Definition
Internet Service Provider "Number". IP address acronym for a Noob and/or Goomba describing their unique numerically based address assigned to a given device on a network.
"Yo, Tony I think I lost my ISPN thing over here."

"Frankie, give it to (FBI).GOV, they'll fuckin' watch it for ya!"
by Domestic Bestiary November 18, 2011

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