flip-flop

flip-flop (http://definr.com/flip-flop)

     n 1: a decision to reverse an earlier decision [syn: reversal,
          change of mind, turnabout, turnaround]
     2: an electronic circuit that can assume either of two stable
        states
     3: a backward somersault
     v : reverse, as of direction or attitude [syn: interchange, switch,
          alternate, flip]