fall over yourself
fall over (oneself)
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 trying to seem cool to my friends. It was pretty embarrassing, to be honest.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
fall over yourselfbe excessively eager (to do something).
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