"You canker blossom!" 3 Shakespearean Insults
1906 (n.), in reference to sports; 1930s (adj.) in reference to splinter groups; from break (v.) + away (adv.).
Unconventional; rebellious: a breakaway rock group/ breakaway mind-set (1930s+)
Made to break or collapse easily: bashed with a breakaway chair (1950s+ Theater)