Top Definition
a miscellaneous collection of people and things
That thriftstore was quite the omniumgatherum, not only did i find some great shoes there were some fascinating hipsters hanging out as well.
by ooglagirl May 27, 2007
10 Words related to omniumgatherum
Noun (om-NEE-um gath-er-UM)

A miscellaneous collection of some sort
"It was more of an omnium-gatherum sort of thing"
by TheGreatestEver101-69 November 20, 2013

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