RichThesaurus
bust one's chops
vs
give it one's best shot
bust one's chops
verb
To exert oneself.
give it one's best shot
verb
To make one's best effort or attempt; to try as hard as possible.
How often have the words
bust one's chops
and
give it one's best shot
occurred in a corpus of books?
(source:
Google Ngram Viewer
)