Definition of you can't (or can) talk in English:

you can't (or can) talk

(US you shouldn't talk, you should talk)

phrase

informal
  • Used to convey that a criticism made applies equally well to the person who has made it.

    ‘‘He'd chase anything in a skirt!’ ‘You can't talk!’’
    • ‘‘You're the one that started this conversation so you shouldn't talk,’ I spat back.’