fisticuffs
From Longman Dictionary of Contemporary Englishfisticuffsfis‧ti‧cuffs /ˈfɪstɪkʌfs/ noun [plural] old-fashioned FIGHTa fight in which you use your bare hands to hit someone – often used humorouslyExamples from the Corpusfisticuffs• There was a good deal of fisticuffs.• When his mind's on fisticuffs he sits in on the training sessions there.