You can use mug to refer to the mug and its contents, or to the contents only.一大杯; 一大杯...
If someone mugs you, they attack you in order to steal your money.袭击并抢劫 • I was walking out to my car when this guy tried to mug me. 这家伙企图抢劫我的时候,我正向我的汽车走去。