Similar to photobombing, to ninjabomb a picture is to intentionally posing behind other
people, peeking over their shoulders, under their arms, and in open spaces in other
people's photos, for a later surprise.
The difference between a sneaky photobomb and a ninjabomb lies in that the ninjabomber is dressed
like a ninja (in ninja garb).
Drew: "
dude, I'm looking through my camera, I
don't think I have ANY
normal pictures of you from our halloween party last night."
Stephen: "yeah, but you do have over 20 of me ninjabombing."