Flat

1. To "just call" a bet or raise in poker.
2. A style of tournament payouts that distributes money in a generally even manner (as opposed to "top heavy").

Usage for Definition 1

"Dude, you flatted a reraise, it's pretty obvious you have the the nuts."

Example for Definition 2

A top heavy pay structure might pay out in the following way:

• 40%
• 30%
• 20%

A flat structure might look more like:

• 12%
• 10%
• 8%