One two buckaroo ! Share definition Flag Something you say when someone playfully insults you. I think it means to knock ya around a bit. "oh really ?! Then I'll give ya the old One Two Buckaroo !" One two buckaroo ! by kt vingling July 5, 2008 0 0 Get merch Get the One two buckaroo ! mug. Buy Now — $32.95 See more merch
