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1. Sl. to cease bothering [someone]. Hey, bug off! Your comments are annoying. I wish you would bug off!
2. Sl. Get out!; Go away! (Usually Bug off!) Bug off! Get out of my sight! Bug off and leave me alone!
Also, bugger off. Go away, as in Bug off before I call the police. Both terms are often used as an imperative, as in the example, and the variant is heard more in Britain than in America. [Slang; c. 1900] For a synonym, see buzz off.
To go away. Used chiefly as a command: Bug off! I'm trying to get some work done.