lownby Share definition Flag the male version of a queef. To exhale through the penis I got a crazy blowjob last night, the chick blew air up my shaft, so when I woke up to take a piss i let out a huge lownby lownby by lwo"meatbelt" July 18, 2009 0 0 Get merch Get the lownby mug. Buy Now — $32.95 See more merch