To attend an event briefly but not stay.

Ellipsis of abrupt appearance theory. / Used other than figuratively or idiomatically: see abrupt, appearance.

A fee paid by the organizer to a popular competitor in a sporting event, ensuring that they will attend and thus draw crowds.

Alternative form of nonappearance.

(creationism) A neo-creationist hypothesis which claims that the first life and the universe appeared abruptly, and that plants and animals appeared abruptly in complex form.

Alternative form of abrupt appearance theory

(idiomatic) Synonym of speak of the devil

(idiomatic) Alternative form of speak of the devil