Came across an Ayrshire dialect word that I haven't heard in yonks today: "keech" - meaning "shite". It's quite often used in the phrase "bird keech"; or as an adjective: "to be keech at something" e.g. "The goalkeeper was keech at coming out for crosses." Brand new. Made me laugh.
It's pronounced - for those of you who are now going to integrate this fine lexeme into your daily vocabulary - with a Celtic "ch" as in "braw bricht moonlicht nicht". Try saying "quiche" with a lisp and you're almost there.