Yout of Today

I don't expect it's a mistake, but I love to imagine the conversation, late at night.

"Haw, Banksie!"
"Wot?" He pauses briefly, aerosol in hand and turns round to look down to the towpath.
"You've missed summat."
"Get lost," He turns back to the wall, and shakes the can.
"Naw, really."
"Like wot?" A little annoyed, he turns round again, aerosol poised for the final splash of colour.
"Aitch. It's Youffs, ya eejit, wi' an aitch."
"Och, bugger it! Could you no have said summat sooner?"
"Ach leave it. It'll dae."