A blacksmith apron is the english terminology for a gunt. Basically this is when a females gut hangs over her genitals. Not an attractive look!
"Hey Rich T, look at em and her blacksmiths apron!"
This afliction is when a persons gut hangs over thier belt, so much so, that it covers thier genitals, in the style of an apron.
"Hey Rich T, look at em`s blacksmiths apron!"