A mug is girl gamer that doesn't speak English and keeps repeatedly asking you about English grammar and/or definitions of words.
Charlene, you should stop acting like a mug, I'm not your English teacher!!!
Best boss in the whole universe. Their name is usually David and likely an OAM.
Wow, that's the biggest mug I have ever seen. Their name is probably David.
a mug shot of a prisoner right after his arrest.
i saw his mug in the news paper