fall over (oneself) to (do something)

fall over (oneself) to (do something)

To expend an inordinate amount of energy or effort to do something, especially as a means of gaining attention or approval. John is such a teacher's pet, falling over himself to impress Mrs. Smith. My parents fell over themselves to try to seem cool to my friends. It was pretty embarrassing, to be honest.
See also: fall, over
Farlex Dictionary of Idioms.

fall ˈover yourself to do something

(informal) do everything you can for somebody because you want to please and impress them: After he became manager, people were suddenly falling over themselves to help him.
See also: fall, over, something
Farlex Partner Idioms Dictionary
See also:
  • fall over oneself
  • fall over yourself
  • fall over yourself to do something
  • fall all over (oneself)
  • fall all over oneself
  • expend
  • fall over backward
  • fall over backwards
  • expend (something) for (something)
  • expend for