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A term reserved for when defining a covey of questionable individuals at a social gathering as "randos" just doesn't effectively convey how likely said individuals are to jack your ipod, punch the host in the mouth unprovoked, commandeer the the stereo system and insist on playing their rando tunes that appeal to no one, etc. A more threatening and implacable strain of rando.

Sketchy Randos are characteristically twitchy, loitering, dull-eyed, probably backpack-wearing, and by definition, know absolutely no one at the social gathering they are attending.
(sarcastically) Michaela is throwing a party to be sure to invite all the sketchy randos you can think of.
by staggosarus October 13, 2010