A substitute, or abbreviation of the word "Amazing". To achieve full effect of the expression, "Madin" should be spoken in a rather over-cooked excited tone of voice.
Jack :"Hey man, I made sure we got the special offer on Chinese takeaway, major scran tonight"
Sam:"Ahhhh Madin!!"
Sam:"Ahhhh Madin!!"
by Souptoy June 13, 2012
Get the Madinmug.