The initial idioms of the letter B

bathtub scum	bathtub
Don't throw the baby out with the bathwater	bats
bats in one's belfry, have	batshit
batshit crazy	batted
batted out	batten down the hatches
batter	battered
bruised and battered	batter down
batter up	battery
batty	batting
bat a thousand	bat an eye
batting on a sticky wicket	battle cry
battle for	battle out
battle against	not know B from a battledore
belemnite battlefield	battle
a battle of wits	a battle royal