bawjaws is a scottish term of (mild) abuse. Not as harsh as eejit, more like a numpty or heid-the-baw. I chose it as a username because I remember my dad calling me it as a bairn.
It must be falling out of use because even google only returns 14 instances of the word and a few of those are my use of it as a username. Maybe there's an alternative spelling. Anyway, one of the results gives a fairly good example of it's use in a play...
SCENE 1: ACTION REPLAY
GREEN'S CINEMA, RUTHERGLEN CROSS, AND SALAMANCA P.O.W. CAMP, JULY 1937.
MARY COLLINS, USHERETTE IN THE CINEMA, shining light into camera, then pull back into the action in the cinema. Show government newreel of events in Sapain, then the workers' cinema version replaces it. English minister stating why they are abandoning Cataluña - financial interests - Spanish stating they did the same in 1712.
(Strict, but having fun/affection for the children)
Right. Come oan noo. Take yer seats. If yer no fast, yer last. Listen bawjaws, you fling wan mer bit a oarange peel an ah'll squeeze you tae the pips squeak. Come on. "If it's Green's, it's good". Hey, heid-the-baw. Lea the actin tae the actors. How miny poackits huv you goat? Less a that. You were warned already. Ye coulda hid somedy's eye oot there. Aye it's good. It goat a big write up in the paper. Ah don't care if ye've sat oan something. Change yer seat ur yer troosers, son. Listen tae gallus Alice. Ah know your mother. She's probably too ugly tae remember me. Naw, ye cannae get a shot. Because it belongs tae the cinema an ah buy the batteries. Ah'd like tae see you look sexy in this overall. At least ah've goat aw ma ain teeth, an they'll be in your neck in a minute if ye don't button it. Hoi, gingernut! You light that up in here an ah'll gie ye a hose doon fae the nose doon. Well hit im back, then. Hard. Look where yer gaun missus. ah know ah've goat flat feet, but don't take me fur a doormat. Three chairs fur the big yin. She's fadin away tae a gable end. Did you hiv that ticket in yer mooth? Don't come wide, ur ah'm liable tae come snide. Wan toot an yer oot, wee man. Shut up greetin face. Hurry up, hen. Yer gonnae miss the start a the picture.
At end of scene, focus in on newsreel, reaction shot of Mary thinking she sees her son, cut to real action.
Scene of Jamie fighting. His gun falls to pieces. The fascist soldiers approach him amused and mock him. Then he is beaten unconcious with the butts of their guns.