Scottish slang, often used by youths to desribe the act of binge drinking in Fife. Is usually accompanied by a non related statement post use.
Here son, pit doon that macaroni pehh, and let's go on a Mad Ain the night! ----- "Nae danger lad, sounds pretty helfy. Here! Wha's doag is that!?"
by An-actual-LAD March 23, 2011