Definition of buck-passing:
(n) :
A male deer, antelope, sheep, goat, rabbit, hare, and sometimes the male of other animals such as the hamster, ferret, salmonid, shad and kangaroo.
(n) :
(US) An uncastrated sheep, a ram.
(n) :
(Africa) An antelope of either sex; compare with Afrikaans bok.
(n) :
A young buck; an adventurous, impetuous, dashing, or high-spirited young man.
(n) :
(US, dated, derogatory) A black or Native American man.
(n) :
(US, military slang, WWI–WWII) Lowest rank; a private.