bulging
tourists with bulging pockets

deep
zip (BrE), zipped, zippered (AmE)
jean (esp. AmE), jeans, pants (AmE), trouser (esp. BrE)
coat, jacket, shirt, vest (AmE), waistcoat (BrE), etc.
back, breast, chest (AmE), front, hip, inner, inside, outer, side, top
door (esp. BrE), seat
Please read the safety leaflet in the seat pocket in front of you (= on a plane).

hidden, secret
Forged passports were found in a secret pocket in the suitcase.

check, feel in, fish in, fumble in, go through, rummage in, search
He went through all his pockets looking for his key.

pat
My cellphone rang and I patted my pockets looking for it.

reach in
She reached in her pocket and pulled out her phone.

dip into (figurative)
Once again club members have had to dip into their pockets (= spend their own money) to buy new equipment.

fish sth from/out of, get sth from/out of, pull sth from/out of, take sth from/out of
I fished the list out of my pocket.

empty, turn out
The security guard made them empty their pockets.

put sth in/into, stuff sth in/into, thrust sth in/into
She stuffed the money into her pocket and walked out.
He walked past with his collar turned up and his hands thrust into his pockets.

fill, stuff
We filled our pockets with apples.

line (figurative)
Dishonest officials have been lining their pockets with public funds.

pick
He caught a boy trying to pick his pocket on the bus.

bulge
My pockets were bulging with loose change.

lining

in the/your pocket
My wallet was in the back pocket of my jeans.

out of the/your pocket
He took a few coins out of his pocket.

hands in pockets, with your hands in your pockets
He stood there, hands in pockets.

the lining of a pocket

large, small
The country has large pockets of unemployment.

isolated

a pocket of resistance
Government forces are mopping up the last pockets of resistance.