FLIP-FLOP

n. & v. --n. 1 a usu. rubber sandal with a thong between the big and second toe. 2 esp. US a backward somersault. 3 an electronic switching circuit changed from one stable state to another, or through an unstable state back to its stable state, by a triggering pulse. --v.intr. (-flopped, -flopping) move with a sound or motion suggested by 'flip-flop'. [imit.]