Columbian Toothbrush Share definition Flag placing cocaine on your finger and rubbing it on your gums like a toothbrush. Want a bump? Can't my nose is stuffed up. So use a Columbian Toothbrush. Columbian Toothbrush by Samurai Sevens July 7, 2007 0 0 Get merch Get the Columbian Toothbrush mug. Buy Now — $32.95 See more merch