fat nooner Share definition Flag A term for popping a wheelie, usually on a motorcycle, and usually performed by a motobro. Not as dank as a fat ass nooner. I'll be rippin fat nooners all over town soon as I get my gixxer fat nooner by Nig downtown J-dubya February 6, 2017 0 0 Get merch Get the fat nooner mug. Buy Now — $32.95 See more merch