by JulyButterfly November 20, 2004

by Dragonathan November 30, 2011

by TheRealJM November 11, 2013

by skatman May 25, 2003

by that pimp December 28, 2005

It just means "no problem". People add "bob" because it rhymes with prob. Earliest usage can be found in the sit-com "Family Matters".
by Shoken April 21, 2016
