Big Blind
preflopA forced bet posted by the player two seats left of the dealer before any cards are dealt
Definition
The big blind is a mandatory bet that one player must post before each hand begins. It's placed by the player sitting two seats to the left of the dealer button and is typically twice the size of the small blind. Because it's forced — not optional — the big blind exists to put money in the pot and keep every hand interesting.
Example
Imagine you're playing a $1/$2 cash game (the numbers refer to the small blind and big blind). You're sitting two seats left of the dealer button, so you automatically post $2 before seeing your cards. Everyone else at the table must at least match your $2 to stay in the hand. If no one raises, you still have the option to "check" (pass without betting more) or raise — this special privilege is called the "option" and only the big blind gets it.
Why It Matters
Understanding the big blind helps you in two key ways. First, you'll know when it's your turn to post it so you're never caught off guard. Second — and more importantly — being in the big blind is actually a strategically tricky spot. You're the last player to act before the flop (the first three community cards), which sounds good, but after the flop you'll be first to act every single round. That's a disadvantage, and experienced players exploit it by raising into you often. Knowing you're in the big blind should put you on alert: you'll face more pressure here than almost anywhere else at the table.