in each other’s pockets —(coll.) associating closely to the extent of losing privacy; being together too much:
- At our winter camp we live in each other’s pockets for six months without seeing anyone else at all.
in someone’s pocket—(coll.) under smb.’s control or influence (because a person has been bribed, etc.):
- The scandals investigated included a building official who was in the pocket of a local developer.