T'ree-fi'ty Share definition Flag Three dollars and fifty cents. Generally used to distract the Loch Ness Monster. That damn Loch Ness Monster, he wants to come and get my t'ree-fi'ty! T'ree-fi'ty by Bastardized Bottomburp March 18, 2003 0 0 Get merch Get the T'ree-fi'ty mug. Buy Now — $32.95 See more merch