fanda pants Share definition Flag an aussie slang term for someone who has red pubic hair; a firecrotch So, your boyfriend has red hair does he? Seems like he might have a bit of a fanda pants goin' on there, eh? fanda pants by blackofalltrades March 18, 2009 0 0 Get merch Get the fanda pants mug. Buy Now — $32.95 See more merch