barney
noun
1. (Britain, Australia, Cockney rhyming slang) A noisy argument.
2. (Britain, Australia, Cockney rhyming slang) A minor physical fight.
3. (US, pejorative slang) A police officer, usually one perceived as inferior or overzealous.
verb
1. (Britain, Australia, Cockney rhyming slang) To argue, to quarrel.