The act of taking a long shit and wrapping it around somebody's neck for warmth. Most likely to occur in Cumnock (Ayrshire) or similar towns, where people can often be found sleepingon the street after a heavy night and somebody thought it would be funny/helpful to commit this act on them.
Hey Ewan, look at wee Angus sleeping in that doorway
Aye, he's had a few too many
Let's give him a Scotsman's scarf before he catches pneumonia
The act of drinking copious amounts of special brew then when your partner is asleep and after defacating straddle your asleep partner and proceed to thrust your dirty anus forwards and backwards over her face.
Fucking hell Gav me and our lass got pissed onspecial brew last night and I thought it would be a good idea to give her an Angry Scotsman.