The initial idioms of the letter B

be all brawn and no brain(s)	be all brawn and no brains
be done in	be all ears
be all eyes	be (all) for (someone or something)
be all fun and games	be all in (one's/the) mind
be all in a day's work	be all in the/ mind
be all it's cracked up to be	be all moonlight and roses
be all mouth	be all over
be all over the shop	be all talk
be all that	be all there
be all things to all men	be all thumbs
be all very well	be all wet
be along	be along the lines of (something)
be an [artist.] to fingertips	be an apology for
be easy meat	be an open book
be an easy touch	be another different kettle of fish