Every buy is a DIP for me so far as you have a long hodling plan for your investment in bitcoin. We should forget about those days when the price of bitcoin was so low and affordable such as in 2011 because those days bitcoin hasn't gotten this attention and popularity it has gotten now and not many people also trusted or knew about bitcoin then. Bitcoin is a volatile asset that has the possibility to rise over time that is why we should consider any price we buy as a DIP because it will surely increase in the future, all we need do is have a long-term mindset and make sure we don't sell along the line when our investment is not yet ripe for harvest.
      If you buy bitcoin at the price of $83k, imagine what the price will be in 2030 or 2035, so buying now is still a DIP price compared to the price bitcoin will get to in those years to come so the DIP you are waiting for is still now, if the price falls and you have enough money to acquire then you can still buy more but never expect that there is a certain price that it will get to before we can call it a DIP price.