Great idea for a thread - some Scots ones :-
Maukit
Blootered
Marak or miraculus
Stotious
Cannie bite his finger
Pished as a fart (always with a sh)
On the electric juice
On the Skite (Orkney I believe)
Fealing nae pain
Been on the bevvie
Pished as a newt / Relaxed as a newt
Bladdered
Blitzed

That's just scratching the surface.