Bean : noun La bean is an annual leguminous plant, vetch whose seeds are eaten fresh or preserved.
Give a bean to the eye: take a look.
Catching the bean: Paying for others. To receive a blow intended for another.
Make a bean for a pea: be generous to people who have behaved meanly.
To find the bean in the cake: to find the decisive point of a case or of a question or, by mockery, to have been deceived by imagining to have made some extraordinary discovery.