Definition of "bullocks"

Traffic is very light and there I am, sweating my bullocks off and it seem, bike starting to seriously overheat, and rider bike combo isn't bloody heavy enough to set off the bloody trip wires.

2000 February 4, Dr Evil, “Traffic light road sensons Vic”, in aus.motorcycles‎ (Usenet)

Robbie Keane should come up with something more suitable to his person, like scratching his bullocks after every goal.

2001 February 20, Bert Kwouk, “Re: Stupid Goal Celebtrations”, in uk.sport.football.clubs.liverpool‎ (Usenet)

I think this summer's IJA, with its line-up of guests, is going to be quite good as well. I know I'm working my bullocks off to make the workshops line-up sparkle and shine.

2009 June 8, Matt Hall, “Re: Throwing higher, tiff bjc workshop”, in rec.juggling‎ (Usenet)

“Oh, bullocks!” she exclaimed. “Well, no real harm done. I remember the numbers.”

2001, Sanford H. Margalith, edited by Gail M. Hayden, Captains‎, Jona Books, page 122

It looks as thoguh you’re in store for a live threed Chairman Olin, I should wan you that the following presentation has been deemed doublepluscrimethink by our Supreme Revolutionary Oceanic Ministry of Truth, and possession of this material in any form is...oh, bullocks, I gave myself away...

2003, Paul Lucian, Nineteeneightyfive; an Unnovel‎, iUniverse, page 191

“Oh bullocks!” he shook his head in disgust. “You haven't heard a word I said!”

2008, Valjeanne JEffers, editor, Immortal‎, Lulu.com, page 42