Draught beer

Draught of beer, draft beer

• beer served from a tap, beer drawn from a keg

 Froth

1. A mass of bubbles in or on a liquid; foam.
2. Salivary foam released as a result of disease or exhaustion.
3. Something unsubstantial or trivial.
4. A fit of resentment or vexation: was in a froth over the long delay.