1 definition by Babii-Hdiip

Top Definition
a way in telling a person to "Come up"..started by bloods and they dont say the letter "c" so they would say "bum up"
get there stuff togetha..get fresh..Fly..ect.
-Bum Up!!
-Get like meh...BUM UP!
by Babii-Hdiip September 16, 2007

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