cardboard pants Share definition Flag A term used when seeing a hot chick, implying she is so hot you just jizzed your pants and it's dry and cardboard like. Dude: Fuck yeah she's hot as fuck, bro! Sam: Aww man, I've got cardboard pants. Fuck. cardboard pants by Sea Dot January 22, 2014 0 0 Get merch Get the cardboard pants mug. Buy Now — $32.95 See more merch