(v.) to finally end your painful relationship with someone or something, such as a job or a lover; to escape (from something or someone); to get out of an undesirable situation; to get out of trouble.
Definitions (粵典–words.hk)
動詞
離開，唔再屬於某一件事、一個組織，通常會覺得放鬆、開心 to get rid of something; to be no longer involved in something; to get out of trouble
你揾人做替死鬼，你咪可以甩身囉！
你揾人做替死鬼，你咪可以甩身啰！
nei5 wan2 jan4 zou6 tai3 sei2 gwai2, nei5 mai6 ho2 ji5 lat1 san1 lo1! If you make somebody a scapegoat for you, then you can get out of the trouble.