punter

One who bets (punts) against the bank.

One who oars or poles a punt (pontoon).

One who punts a football.

One who gambles. See speculator.

A customer of a commercial establishment, frequently of a pub or (alternatively) of a prostitute.

A beginner or unskilled climber.

The person who keeps score in basset or ombre.

A program used to forcibly disconnect another user from a network.