buck3
Pronunciation: /bʌk/

Phrases
-
the buck stops here (or with someone)
- informal the responsibility for something cannot or should not be passed to someone else: in the past you could spread the blame, but now the buck stops here
-
pass the buck
- informal shift the responsibility for something to someone else: elected political leaders cannot pass the buck for crisis decisions to any alternative source of authority

Origin:
mid 19th century: of unknown origin