trolleywags Share definition Flag An old fashioned slang term for trousers. Presumably of cockney origins. Put some trolleywags on those cabbage stumps! My trolleywags are filthy. I took off my trolleywags. trolleywags by JordanR February 19, 2007 0 0 Get merch Get the trolleywags mug. Buy Now — $32.95 See more merch