act on instinct(redirected from acts 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.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.