Red hand of ulster

A northern irish tradition of, when your friend turns his back, SLAP HIM ON THE BACK OR ASS AT F U L L FORCE.
If you have a Northern irish friend watch ye back

I just gave ya the old red hand of ulster!

by EnjoymentEnjoyer March 8, 2023

The red hand of Ulster

This, rather crudely, is what happens when you masturbate a woman who is menstruating. I first heard it in Northern Ireland, which, I imagine, is its obvious place of origin and relates to the Ulster flag.

'Don't go there!'
'Why?'
'You'll get the red hand of ulster!'

by Jimmybobby123 November 8, 2007