They Shoot Heroin, Don't They?

Oh {Big Blue?}, he's addicted, he just wants more
After running 800 furlongs, he just wants to score

Manakato, he just can't let go of his heinous addiction
Anyone tell you Pharlap's a junkie, buddy that ain't fiction

Yeah... they shoot heroin, don't they?
White line, a dead heat,
I'm waiting for my Manakato
Shoot heroin, shoot heroin, don't they? yeah!

All those four-legged {?} versions of Barlow and Chambers
What was Silver Speeding on when he was under the Lone Ranger?

Yeah... they shoot heroin, don't they?
White lie, a dead heat
I've got the jockey on my back
Shoot heroin, shoot heroin, don't they?