tip out

Short definition from Wiktionary

Verb

1. 1
   To extract (something) by tipping over the container that contains it.
2. 2
   To provide a percentage of tips to certain co-workers who support the work done by the waiter.

Noun

1. 1
   An amount or percentage of a server's tips that the server shares, either voluntarily or as mandated in a tip sharing or tip pooling agreement, with other employees such as bussers, bartenders, back waiters and host/hostesses whose job duties indirectly assist the server.