- birch
- be all over
- broad in the beam
- brazenness
- blowing hot and cold
- barcoo
- be mad for
- bovver boy
- blotto
- bonehead
- bite-sized
- beyond contempt
- bump up
- bolshiness
- bust up
- bring to naught
- blubber
- bust one's chops
- be wrapped
- bang on
- bad-mouth
- bellyache about
- be in charge of
- bananas
- buck p
- braindead
- be unable to stomach
- be doing with
- by one's lonesome
- beyond the pale
- become cognizant of
- bunco
- bust-up
- bounciness
- bang someone up
- be responsible for
- blockheaded
- bright-eyed-and bushy-tailed
- bog off
- bonkers
- bush-league
- benignity
- bunco artist
- big bucks
- barfly
- borstal
- bonniness
- Brobdingnagian
- bearish
- bat around
- bit of argy-bargy
- be on the top of the world
- big kahuna
- blissed out
- bounteous
- bright-eyed and bushy-tailed
- be at the helm of
- bonzer
- beauteousness
- baddy
- back-stabbing
- bridewell
- big enchilada
- be the brains behind
- blow someone's mind
- bat about
- bags of
- ballhoo
- bumph
- blow up at
- brae
- bright and breezy
- braveness
- Brobding-nagian
- bejewel
- blissfulness
- bite the big one
- be smashed to smithereens
- burn rubber
- burn up
- buy the farm
- bog-standard
- bog standard
- Bible-basher
- bomb bucket
- boneheaded
- boracic
- be in prison be inside
- brown off
- bug out
- bags
- blathers
- bevvied
- be behind bars
- blubbery
- bats
- butterflies in the stomach
- braininess
- blow one's lid
- boots