The initial idioms of the letter B

be sacrificed on the altar of	be scared shitless
be scattered to the four winds	be second to none
be seeing you	be set aback
be set in cement	be set in concrete
be carved in stone	set on
be set to rights	be several bricks short of a (full) load
be several cards short of a (full) deck	be several cards short of a full deck
be shacked up with (someone)	shaken up
be shaking in boots	be shitting bricks
be short of a bob or two	short on looks
be shortlisted	be shot
be shot to hell	be shown the ropes
be sick	be sick and tired of
be sick of (something)	be sitting on a goldmine
be sitting pretty	be six feet under