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Expression of the day: "my bad"
means: I did something wrong. ... but it has a feeling of: I don't care very much.
for example: I forgot the appointment. My bad.
has a feeling of: So what? (another expression meaning: I don't care.)
This blog is mainly to explain a different English language expression every day. Sometimes I post other stuff. I also have a YouTube channel which is mostly about computer software: https://www.youtube.com/englishspacedog