A person on Flickr who

1.) posts a large number of photos to a given group.
2.) posts off-topic photos.

The purpose is to maximize exposure.
That guy who posted photos of every freeway exit sign in California to the Orange County group was an annoying dumper.
by EmperorNorton47 April 6, 2022
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a beaker dumper is a chemist who know a very good recipe
congats you have a good recipe for you are now a beaker dumper
by escamillaroy July 28, 2022
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When someone you're dating is rude and disrespectful to you so realizing you'll probably be dumped sometime soon you abruptly end the relationship rejecting that person before he/she can reject you.
That gal treats me terribly breaking dates at last minute with lame excuses and ignoring me when we're at social functions so I'll be dumpering her today.
by Red Sam Black March 27, 2018
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A significantly large, crispy, succulent crab Rangoon.
Waiter: Here are your rangoons sir, enjoy!
Me: Aw man, these big crabby dumpers look delicious!
by SchlongGobbler69 March 30, 2022
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