When someone's mom purposefully or incidentally photobombs a picture. (Almost always viewed in a negative light.)
Sweet house party man! Too bad half of the pictures were photomomed.
by thegordinator October 4, 2010
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photomom is a mom of somebody at a photoshoot who brings chips and iced frappuccinos and does background checks on photographers
wow your mom brought chips and iced frappuccinos--she's such a photomom!
by Patrick R July 21, 2005
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