loggerheads
log-ger-heads
adjective
In strong, often persistent, disagreement or dispute with someone or something.
"The two departments are at loggerheads over budget cuts."
Thesaurus
Synonyms: lunkhead, dunce, dumbass, dunderhead, fuckhead, hammerhead, knucklehead, numskull, muttonhead, shithead, blockhead, bonehead