not be able to hit the broad side of a barn

barn find

A valuable item recovered from poor storage, such as a suburban garage, farm shed, etc., where it had been more or less forgotten; especially a vintage automobile.

bit by a barn mouse

tipsy; slightly drunk

born in a barn

In a past tense: criticizing the person to whom the phrase is directed for inappropriately, and usually neglectingly, leaving an exterior door or window open, considered ill-mannered.

bright side

A consoling aspect of a difficult situation.

broad and shallow

Associated with the Broad Church; latitudinarian.

broad brush

A style or approach that deals with something in very general, sweeping terms, without attention to fine details or subtle nuances.

broad in the beam

Wide across the hips, with large buttocks.

broad shoulders

the ability to take criticism, or accept responsibility.