Literally, it means testicles, but more colloclially it means bullshit in every English speaking country I know of.
edit: Apparently not. Just messaged my American buddy, and he thought it might be a wig for cows... So, maybe not Americans.
edit: Apparently not. Just messaged my American buddy, and he thought it might be a wig for cows... So, maybe not Americans.
... yet in C. S. Forester naval stories, it clearly refers to steers or bulls.
So, I can only conclude that it is a random operator used to confuse colonials.