Meaning of the word "shoot yourself in the foot" in English

What does "shoot yourself in the foot" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

shoot yourself in the foot

US /ʃuːt jərˈsɛlf ɪn ðə fʊt/
UK /ʃuːt jɔːˈsɛlf ɪn ðə fʊt/
"shoot yourself in the foot" picture

Idiom

to unintentionally harm one's own interests or efforts

Example:
He really shot himself in the foot by insulting the boss during the meeting.
Don't shoot yourself in the foot by quitting your job before you have a new one.