Kick It
To kick it means to raise. You kick it when you make a larger bet after someone has bet.
The simple explanation
If a player says 'I kick it', he is raising the bet. The word is used as a casual way to say raise.
A closer look
The phrase is mostly heard at the table and in stories. It is the same action as raising or jacking up the bet. In no-limit games, a verbal declaration is binding in most rooms, so if you say 'kick it' without saying an amount, the dealer will have to decide what you meant. Say clearly 'raise' and the amount.
A practical example
A player bets $20, and the next player says 'I'll kick it' and puts out $60.
Full explanation
To kick it means to raise. You kick it when you make a larger bet after someone has bet.
To kick it is to raise.
It is table slang.
The same action is also called jack up.
Say the amount clearly when you raise.