The initial idioms of the letter B

barn find	barnburner
Barney	barn
barnstorm	barracuda
barrage of criticism	barred
barrel	barrel along
barrel ass	barrel ass out of somewhere
barrel fever	barrel in
barrel of laughs	barrel of monkeys
barrel out	barreled
barrel in(to)	barrel out (of)
barreled up	on opposite sides of the barricade(s)
barring	barrow
barrow boy	barrow man
barter away	barter for
barter with	barter