be in a groove

be in a groove

1. To be immersed in a particular task and thus working smoothly and efficiently. Now that I'm in a groove, I think I'll be able to finish this paper tonight—ahead of schedule! If I'm in a groove, I can clean for hours.
2. To become seemingly trapped or stuck in a mundane, non-changing pattern of life, work, and/or personal behavior. In this usage, "stuck" can be used after the conjugated form of "be." I had so many ambitions when I first graduated from college, but now I feel like I'm in a groove. We're stuck in a groove—let's move abroad for the summer and shake things up!
See also: groove
Farlex Dictionary of Idioms.

be (stuck) in a ˈgroove

(British English) be unable to change something that you have been doing the same way for a long time and that has become boring: While other businesses are attracting new customers, this one seems to be stuck in a groove, and has been losing money for the last two years.
See also: groove
Farlex Partner Idioms Dictionary
See also:
  • be in the groove
  • groove
  • in the groove
  • get in the groove
  • get (one's) groove on
  • bound up in
  • bound up in (something)
  • stone groove
  • have (something) down to a T
  • have down to a T