thin in the skin Share definition Flag -Weak skinned or weak willed. -the equivalent of calling someone a pussyboi "Shit dude, you ain't asked out that girl you like yet?! You're so thin in the skin." thin in the skin by kabootyhole98 December 12, 2017 0 0 Get merch Get the thin in the skin mug. Buy Now — $32.95 See more merch