Belligerent, in British slang

• Trouble as a horse runs over
• Belligerent behavior, to Brits
• Big trouble
• Violently pushy
• About to blow, in slang
• Brit exasperation
• In fighting mode, slangily
• Like violent moshing, slang

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
aggro \aggro\ n. 1. aggravation or aggression. [informal British usage] I skipped it because it was too much aggro

Longman Dictionary of Contemporary English Word definitions in Longman Dictionary of Contemporary English
noun EXAMPLES FROM CORPUS ▪ A different set of rules then operate to impose limitations on the expression of aggro . ▪ If there was aggro she could handle it. ▪ This could cause aggro with Dev's girlfriend Geena. ▪ When she returned there would be aggro ...