strong-arm I. \ˈ ̷ ̷ˌ ̷ ̷\adjective Etymology:strong arm : having or using undue force : violent < strong-arm methods of strikebreaking > II. transitive verb 1.: to use force upon : handle roughly : beat up : assault < strong-armed by a vice squad > 2.: to intimidate by threat of violence < strong-arming small business into paying protection money > 3.: to rob by violence