forehead-man Share definition Flag A way of describing ( or mocking ) a person with a large a#$ forehead; a person with a forehead as big as the entire universe Hey isn't Luke such a forehead-manIKRLOLOLOLOLOLOLOL forehead-man by Grandpa Hewitt June 15, 2019 0 0 Get merch Get the forehead-man mug. Buy Now — $32.95 See more merch