Wildman Gary Busey  had bottomed out big time when he went bow-wow-wowing for coke!

The Buddy Holly Story star who claims he's been sober for years admits he went cuckoo for canine after his dog rolled in the priceless china white.

"I went in like a crop-duster with my nose flying first and snorted the cocaine off the dog," Busey said in a recent interview.

But Busey got more than coke up his nose as he snorted dog stuff up as well.
 
"You get a little bugs, you get little hairs, you get grease and goo from the ground; it's not at all a healthy thing to do.

"But when you're an addict, you don't think of health, you think about destruction of yourself unconsciously."

Not to mention the years the dog probably spent in rehab.