turn with every wind

/T ER1 N W IH0 DH EH0 V ER0 IY0 W AY0 N D/
verb
  1. 1

    (derogatory) To be inconstant, to go along uncritically or opportunistically with fashionable opinion.

  2. 2

    Used other than figuratively or idiomatically: see turn, with, every, wind.