Grouse

Grouse – “all out (of beer)”

In German taverns they would cry “gar aus!” (all out) when their cups were dry and needed a refill. This gave rise to both grouse (to complain) and carouse (to have a rowdy good time).

from theenglishcrux

[I have a feeling The Undefined will be hearing this from me from now on. Thankfully he is a very patient man. -forté]