Read the dictionary definition of mug. All definitions for this word.
1. with handle and usually cylindrical
2. the human face (`kisser' and `smiler' and `mug' are informal terms for `face' and `phiz' is British)
3. a person who is gullible and easy to take advantage of
4. the quantity that can be held in a mug
5. rob at gunpoint or with the threat of violence
1. I was mugged in the streets of New York last night