wet my hair Share definition Flag A female-only announcement meaning "I have to go for a piss". Only heard in the context of women from the NE of Britain. Ooh give over will you, I've just got to go and wet me hair! wet my hair by Thaarg The Almighty October 1, 2004 0 0 Get merch Get the wet my hair mug. Buy Now — $32.95 See more merch