"I know you are, but what am I?"
just say Haters like you just Hate because you are not doing as well as me
a good comeback would be " look who is talking" "there's a mirror hun, woops! it broke!!" "haha i wouldn't be talking if i were you."
A good comeback could be to confidently assert your self-worth, such as saying, "I know my value, and your opinion doesn’t define me." Alternatively, you might respond with humor: "I’d rather be a skank than be bitter." This can defuse the situation while asserting your confidence.
If someone calls you fat, a good comeback is 'I may be fat, but you're ugly, at least I can diet!' though, the best comebacks are said in your head. If you say it in ur head, u get the satisfaction of knowing more than the bully and will normally smile. Bully's hate that and after a while will probably get bored and stop.
tell them i know you are but what am i and keep doing that until he gos away
This does not need a comeback. This is technically a compliment from someone, so stop taking everything so literally.
Say "that person must be very pretty then"
my pleasure(if you like them or something)
a good comeback to that is you wish.
A good comeback could be: So ? Or : And your point is ?...
Yo' mama! Is a good comeback
A good comeback could be, "Well, beauty is in the eye of the beholder!" Alternatively, you might say, "Not everyone has great taste!" This allows you to respond playfully without escalating the situation.