The meaning is derived from indeed, or for sure. This is a much more expressive way of saying it, as in "hell yeah".
Mike: "What are you up to dude?"
Andy: "Nothin much. Tryna get me some hot bitches tonight. You down?"
Mike: "Fo shwang!"
Andy: "Nothin much. Tryna get me some hot bitches tonight. You down?"
Mike: "Fo shwang!"
by Mickey Dee November 15, 2007

by A Biggidy Bomb March 16, 2009

by u love joann's d!ck September 9, 2006

by HD2STP July 13, 2009

agreeing 2 something.
by HAZZA MATE. May 29, 2005

For sure; Often a word used by teenage white dip shits (see wigger) that try to have street cred, often used with cojunction with "nizzle"
Poser: You want subway?
'nother poser: Fo shizzle my nizzle in the hizzle off the Chain!
Normal person: Shut the hell up.
'nother poser: Fo shizzle my nizzle in the hizzle off the Chain!
Normal person: Shut the hell up.
by Posers suck my balls October 21, 2007

by Justin G April 3, 2003
