do yourself in

Từ điển tiếng Anh - Cambridge Advanced Learners Dictionary

do yourself in phrasal verb reflexive slang [ don't yourself in does yourself in doesn't yourself in did yourself in didn't yourself in done yourself in done yourself in doing yourself in ]
to kill yourself
• She threatened to do herself in when her husband ran off with her best friend.
Thesaurus⁺: ↑Killing ↑Murder and attempted murder
Main entry: do_{phrasal verb}