flip-flop

(US) An instance of flip-flopping, of repeatedly changing one's stated opinion about a matter.

(computing, electronics) A bistable; an electronic switching circuit that has either two stable states (switching between them in response to a trigger) or a stable and an unstable state (switching from one to the other and back again in response to a trigger), and which is thereby capable of serving as one bit of memory.

A sandal consisting of a rubber sole fastened to the foot by a rubber thong fitting between the toes and around the sides of the foot.

A change of places; an inversion or swap.

The sound of a regular footfall.