(Internet, advertising) An advertisement that takes the form of a window that appears automatically on a computer screen when certain websites are visited.

(idiomatic) To get a boost or a lift. / (idiomatic) To gain some advantage; to get a head start.

(idiomatic, Dublin) Get lost! / (idiomatic, Dublin) Nonsense! I don't believe you. / (idiomatic, Dublin) I disagree.

(idiomatic, film, television, literature, video games) A short story, novel, television show, film, computer game, or other narrative which depicts considerable gunplay.

(intransitive, idiomatic, chiefly US) To accept a bill and pay it, especially at a bar or restaurant.

(idiomatic) To make a defense for someone or something, on behalf of another person.

(US, vulgar, idiomatic) To be the recipient of anal sex. / (US, vulgar, idiomatic) To be cheated or treated unfairly.

(US) Of an egg: fried on one side, served with the unbroken relatively soft yolk on the top. / (of a newborn) Born with one's head facing upward, as opposed to the normal downward-facing birth.

(US) Of an egg: fried sunny side up.

(idiomatic) Hidden, in reserve.