FLOP

I. verb (~ped; ~ping) Etymology: alteration of 2flap Date: 1602 intransitive verb to swing or move loosely ; flap , to throw or move oneself in a heavy, clumsy, or relaxed manner , to change or turn suddenly, to go to bed , to fail completely , transitive verb to move or drop heavily or noisily ; cause to ~ , ~per noun II. adverb Date: 1728 right , squarely , III. noun Date: 1823 an act or sound of ~ping, a complete failure , a place to sleep, dung