act on instinct

act on instinct

To do something because one is motivated by a powerful internal impulse. Before I knew what I was doing, I hit the attacker in the face and ran. I just acted on instinct, I guess. If you don't trust someone, get out of that situation immediately. Act on instinct to keep yourself safe.
See also: act, instinct, on
Farlex Dictionary of Idioms.
See also:
  • instinct
  • run from
  • run from (someone or something)
  • force of habit
  • in on
  • in on (something)
  • in on, be
  • be in on
  • be in on (something)
  • stab (someone or something) in (something)