Wiktionary
pub quiz
n. A quiz held in a public house.
Wikipedia
Pub quiz
A pub quiz is a quiz held in a pub or bar. These events are also called quiz nights or trivia nights and may be held in other settings. Pub quizzes may attract customers to a pub who are not found there on other days. The pub quiz is a modern example of a pub game. Although different pub quizzes can cover a range of formats and topics, they have many features in common.
Usage examples of "pub quiz".
Of whist drives and raffles and pub quiz competitions, of wet T-shirt contests (there seemed to have been many of these) and of guided tours and sponsorship deals.