Basically the same meaning as Bull-Shit, but far more socially acceptable, and it's kind of
funny sounding. Comes from the dynamic and complicated, vowel defficient, language that is known as NARTHERN.
"
Yee, I did a hef-
arse job o tha vehucle in aboot a hef an arr."
"BULLWOCKY, tha wauint a hef-arse job, that was bayd, cher
ass over here and I'll learn ye ow te do er righ."