splangin' Share definition Flag adj. A word meaning roughly the same thing as if one were to call something sweet, awesome, cool, chill, radical, and bitchin' all that the same time. "I just won the lottery man!" "Dude, that is totally splangin'!" splangin' by D-Funk January 9, 2005 0 0 Get merch Get the splangin' mug. Buy Now — $32.95 See more merch