slaphappy adj 1: cheerfully irresponsible; "carefree with his money"; "freewheeling urban youths"; "had a harum-scarum youth" [syn: {carefree}, {devil-may-care}, {freewheeling}, {happy-go-lucky}, {harum-scarum}] 2: dazed from or as if from repeated blows; "knocked silly by the impact"; "slaphappy with exhaustion" [syn: {punch-drunk}, {silly}] [also: {slaphappiest}, {slaphappier}] slaphappier See {slaphappy}