can someone please tell how this thing called rakeback works tku
Very simple.
When you play poker, the site earns rake from you in the form of tournament fees or a % or amount per hand at the cash tables.
Some affiliates or sites offer rakeback when you sign up. This means that usually once a month, you"ll get a percentage of the rake that you have earnt the site back to you in a lump sum.
Hence the phrase "rakeback"