How to pronounce pap:
To feed with pap.
(usually in the passive) of a paparazzo, to take a surreptitious photograph of (someone, especially a celebrity) without their consent.
Example: "Look, that pop star’s been papped in her bikini again!"
Spineless, wet, without character.
Example: "He is so pap and boring."
(south african slang) flat.
Example: "I got a puncture and the wheel went pap."