prummer Share definition Flag A modern baby carriage, or pram, that occupies the width of a bus or subway car, the approximate size of a Sherman tank. I tried to get to the back of the bus but some cougar with a prummer was blocking the way. prummer by Nightstalker September 16, 2009 0 0 Get merch Get the prummer mug. Buy Now — $32.95 See more merch