What is Do Wan?
1.
Derry colloquial, the insult to use when you've run out of anything tactful and the person on the receiving end has already used the "your ma" insult. Generally the same idea as fuck yourself, but not as agressive, and suitable for use when fighting with friends without endangering the friendship forever.
"Go do wan"
"Gone go do wan"
"You're taking too long"
"That's what yer ma was sayin last night"
"Aw jesis that was called fer"
"Aye so's your face"
"...Gone do wan"
See