mug
What does mug mean?
In drag, your mug is your beat — the fully painted face. 'Paint your mug' or 'beat your mug' means doing the whole makeup: foundation, contour, eyes, the lot. A flawless mug is the foundation of the entire look, and queens are judged on it hard, especially walking categories like Face. It's the drag spin on the old slang 'mug' for face (as in mugshot).
Origin
Drag scene usage of older English slang 'mug' (face); standard in ballroom and RuPaul's Drag Race vocabulary.