Moving from under random people's umbrellas to other random peoples umbrellas in public because you haven't brought your own
Ugh I forgot my umbrella today and had to umbrella hop from class to class

Yesterday it rained so hard that Precious had to go umbrella hopping
by N.TRIPPA March 21, 2011
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The act of running between friend's umbrellas on a rainy day quickly to avoid getting wet. Often used to get across school commons/courtyards, parking lots, or even quick walks across the street.
I was Umbrella Hopping the whole way across the parking lot!
by AnnLovely May 2, 2011
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