be on the loose(redirected from is on the loose)
be on the loose
To be roaming and acting freely. This phrase can be used humorously to describe someone deemed an uninhibited annoyance, or it can be applied literally to people or animals that need to be contained. I'm not letting my kids go out at night while that burglar is still on the loose. My mother is on the loose this week because she's off from work, so expect at least five phone calls a day.