A noun referring someone who somehow manages to make their way into all your photos, usually in the background and possibly giving you bunny ears or making other rude gestures.
Also a verb referring to the actions of a photohog.

Coined by Ellen DeGeneres as host of the 2014 Oscars.
Chuck: I can’t believe Bob didn’t notice me in the background of his Facebook photos from Friday's party…
Eve: Oh, Chuck! You photohog!

Jack: I bet you, Jim, and Jeff can’t photohog at least half of Joe and Jane's wedding pictures.
Jill: You’re on!
by Neodictarian March 3, 2014
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