pick (one's) brain(s)

To ask one questions in order to obtain detailed information or advice. You should pick John's brain sometime. He knows all about car engines. I've just started playing professionally, and I'd love to pick your brains for any tips you might have.

pick (someone's)

brain/brains

To explore another's ideas through questioning.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

See:

a bone to pick
a crow to pick
bone to pick
bone to pick, have a
captain's pick
cherry-pick
for a song
get up/pick up steam
have (one's) pick of (something)
have a bone to pick
have a bone to pick (with one)
have a bone to pick with somebody
have a bone to pick with someone
have a bone to pick, to
have a crow to pick with (one)
have a pick-me-up
nose-pick
pick
pick (one's) battle(s)
pick (one's) brain(s)
pick (one's) head up
pick (one's) moment
pick (one's) nose
pick (one's) pocket
pick (one's) spot
pick (one's) way
pick (one's) way through
pick (oneself) up off the floor
pick (someone or something) out of (something)
pick (someone or something) out of a hat
pick (someone or something) to pieces
pick (something) clean
pick (something) to bits
pick (something) up where (one) left off
pick a bone (with someone), to
pick a bone with (someone)
pick a crow with (one)
pick a fight
pick a fight/quarrel
pick a lock
pick a quarrel
pick a quarrel with (one)
pick a winner
pick an argument
pick and choose
pick and choose, to
pick and mix
pick apart
pick at
pick at (one)
pick at (something)
pick away
pick away at (one)
pick away at (something)
pick brain
pick from
pick gooseberry
pick holes
pick holes in
pick holes in (something)
pick holes in something
pick nits
pick of
pick of the bunch
pick of the litter
pick of the litter, the
pick off
pick on
pick on (someone or something)
pick on somebody your own size
pick on someone your own size
pick on your own size
pick one's way
pick out
pick out of
pick over
pick six
pick somebody's brains
pick somebody's pocket
pick someone or something to pieces
pick someone's brain
pick someone's brain, to
pick someone's brains
pick something clean
pick something out of a hat
pick the bones out of (something)
pick the eyes out (of something)
pick the right horse
pick the wrong horse
pick through
pick through (something)
pick to pieces
pick up
pick up (one's) marbles and go home
pick up (one's) marbles and leave
pick up after
pick up after (someone or oneself)
pick up on
pick up on (something)
pick up on something
pick up speed
pick up steam
pick up sticks
pick up stitches
pick up stompies
pick up the ball and run with it
pick up the bill
pick up the check
pick up the gauntlet
pick up the hint
pick up the pace
pick up the pieces
pick up the slack
pick up the tab
pick up the threads
pick up the threads (of something)
pick up what (one) is putting down
pick up your marbles and go home
pick way
pick way through
pick your poison
pick your way
pick, etc. something out of a hat
pick, pull, etc. somebody/something to bits/pieces
pick/choose your moment
pick-and-shovel work
pick-me-up
pickthank
pick-up artist
pick-up community
pick-up line
pick-up shot
pigeonhole (someone)
roach clip
roach pick
take (one's) pick
take (one's) pick of (someone or something)
take pick of
take the ball and run (with it)
take up the slack
take/have your pick
the pick of (something)
the pick of the bunch
the pick of the crop
Why don't you pick on someone your own size?