boofer Share definition Flag Term meaning "fart". If you're looking for a funnier sounding word than "fart", then use boofer. You will probably get beaten up. Also can be used as an insult. Did you make a boofer? That kid is such a boofer. Aww, geez. Did I let loose that boofer? boofer by Harry5wee January 25, 2005 0 0 Get merch Get the boofer mug. Buy Now — $32.95 See more merch