1
general::
Phrase(s): hold one’s end of the bargain up [and] keep one’s end of the bargain up
Fig. to do one’s part as agreed; to attend to one’s responsibilities as agreed. • If you don’t hold your end up, the whole project will fail. • Tom has to learn to cooperate. He must keep up his end of the bargain.
McGrawhill's American Idioms And Phrasal Verbs