Totally drunk, absolutely wasted. Indigineous to east kilbride, this phrase comes from a ned (non educated deliquent). In english this term would be "mad with it," but this does have the same effect as the scottish slang version. If you go on a night out in scotland, you will be mad wi' it
by Banjo McGuigan November 14, 2011
Get the mad wi' itmug.