mool bus Share definition Flag A old cadillac used in transporting moolies. The bigger the better Only pick up and drop off at the county jail,welfare office or pregnancy center. Wow did you see that 27 littel darkies just got out of that mool bus. mool bus by stu72 October 13, 2011 0 0 Get merch Get the mool bus mug. Buy Now — $32.95 See more merch
