three fitty Share definition Flag $3.50. The amount the Loch Ness Monster keeps trying to swindle from Chef's parents. "No wonda that Loch Ness Monsta keeps comin' back, woman! You keep givin' him three fitty!" three fitty by J. Hasak October 14, 2003 0 0 Get merch Get the three fitty mug. Buy Now — $32.95 See more merch