Scottish term for someone who is a complete fucking arsehole

Baw is Scots for testicle. You are effectively calling someone a goat's testicle.

Can be used in friendly and offensive contexts.
"Shut it ya goat's baw"

"Hey ya fuckin goat's baw, whit ye daein? Looking for a fight ur ye?"
by Scott T The Silver fox January 23, 2004
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