a strong, dark beer typically brewed in the fall and aged through the winter for consumption the following spring.
Also called bock.
Origin: 1855–60; < G Bock, Bockbier lit., buck beer, perh. by misdivision of Eimbecker Bier (as if ein Bockbier one Bockbier) beer of Eimbeck in Lower Saxony, Germany
[bok] 
