[be set on] or [upon] {v. phr.} To be determined about […]

[be the making of] {v. phr.} To account for the success […]

[be up to no good] {v. phr.}, {informal} To be plotting […]

[be up to something] {v. phr.}, {informal} 1. To feel strong […]

[be-in] {n.}, {slang}, {hippie culture} A gathering or social occasion with […]

[beach] See: [NOT THE ONLY PEBBLE ON THE BEACH].

[beach bunny] {n.}, {slang} An attractive girl seen on beaches - […]

[bead] See: [DRAW A BEAD ON].

[beam] See: [OFF THE BEAM], [ON THE BEAM].

[bean] See: [FULL OF BEANS], [SPILL THE BEANS], [USE ONE'S HEAD] […]