A group of teenage kids partaking in bad Youtube entertainment. Usually located in the Northern Hemisphere in cold places. If found, approach with caution. It is also advised that you bring some sugary, soury, tongue teaser-like candy to try and tempt them into a calmed mood.
"Man! Those ShloopGroups suck!"

or "This one time, I was like, totally walking in the park, when some ShloopGroups attacked me!"
by Sr.Gregorie Jamais October 26, 2008
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