When one uses hash tags out of
context in social networks. Mainly used in comments on Instragram, hashbombing is similar to photobombing, in that it draws
attention away from the photographers
original intention.
Chad: Why the fuck did Spencer comment #dogcrap on that picture of my grilled
cheese sandwhich?
Al: "Dude you just got hashbombed. Now your grilled
cheese is going to show up with pictures of dog doo."