Drawing dead
You are drawing dead when no card still to come can give you the winning hand, so every chip you put in from that point cannot be won back.
It is not the same as being behind. Being behind means you need help and might get it. Drawing dead means the help does not exist anywhere in the remaining deck, whatever falls.
You almost never know it at the table, because you cannot see the other hand. What you can do is notice the boards where it becomes possible, which are the ones where a hand far stronger than yours is already available.
an example
your cards
board
You have kings full of eights, which is an enormous hand. Your opponent holds 8s Ac for four of a kind. There are 44 cards that can come on the river, and not one of them gives you the pot: even a king only makes kings full again. You are drawing dead.
This example is made up. The real one is in your own hand history: find drawing dead in your own hands and see how often it came up and what it cost you.
related terms
Nuts
The nuts is the best hand possible on a given board, the one no other two cards can beat.
Outs
An out is a card still in the deck that would give you the best hand, and counting them is how you turn a draw into a nu ...
All in
A player is all in when they have put their last chip in the pot, which means they cannot bet, raise or fold again in th ...
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Knowing the word is not the same as seeing it.
All ten hands in order, with how often each one turns up.