Question

what is @ tell me about it ​

Answer 1

In social medias they use this to tag/notify people.

that's all ik hope it helps you.

Answer 2

Answer:

informal. —used to say that one understands what someone is talking about because one has had the same or a similar experience"Something is wrong with that computer." "Yeah, tell me about it.

Explanation:

Hope it helps :)