pissing match
A useless or trivial argument, competition, or comparison. Whenever Jeff and Tim hang out, they always get into this pissing match about who's the bigger sci-fi fanatic. If you two are quite finished with your little pissing match, do you think we might get back to work now?
pissing-match
n. an argument; a pointless competition. (Usually objectionable.) Let’s call a halt to this pissing-match and get to work.