Skinnyback Share definition Flag Australian slang term to refer to thin - well proportioned, attractive females. "We're out huntin' Skinnybacks" "Dude, check out the blonde Skinnyback by the bar" Razorback Skinnyback by Superwoody5000 January 26, 2009 0 0 Get merch Get the Skinnyback mug. Buy Now — $32.95 See more merch