Green’s Dictionary of Slang

pap v.

[abbr. SE paparazzi]

to take a (snatched) photograph of a celebrity.

[UK]Observer 16 Apr. 22/5: Or those photographers who hang around the Beach down in Fulham trying to pap me in the early hours.
[UK]Daily Mirror 10 Jan. 33: Nicole is papped all the time.
[Aus]Sydney Morn. Herald 17 May 🌐 I can’t even go to the supermarket without being papped.