Yeahman Share definition Flag A word that combines 'yeah' and 'man'. It is used to confirm something someone else says, in the same way 'yes' or 'of course' does. Guy #1: Did you see that sexy bitch? Guy #2: Yeahman. Bitch was bangin'. Yeahman by The Goddamn Batking February 24, 2011 0 0 Get merch Get the Yeahman mug. Buy Now — $32.95 See more merch