you can talk

You are guilty of the same thing you have just criticized. A: "Kathy never pays attention in class." B: "You can talk! Just today I saw you reading a magazine during the lecture."

ˈyou can/can’t talk

(also look who’s ˈtalking, you’re a ˈfine one to talk) (spoken) you should not criticize somebody because you are also guilty of the same fault: ‘He’s always late for appointments.’ ‘You can talk! You’re hardly ever on time yourself.’ ♢ ‘George is so careless with money.’ ‘Look who’s talking!’