What does "lock it up" mean?

[splashpot]

I made my first couple trips to Foxwoods last week and I heard people yelling this. What does it mean?

[hoopsie44]

[ QUOTE ]
I made my first couple trips to Foxwoods last week and I heard people yelling this. What does it mean?

[/ QUOTE ]

Seat at table is no longer vacant.

[llcoolez]

Players saying it are indicating their desire to have a certain seat reserved for them.
Floorperson saying it is telling the dealer to reserve the seat for the new player.

[Scorpion]

If your initials are ASS, when they announce your name for a seat, Scream "lock it up for Ass". They will save the seat for you.

[webiggy]

"lock it up" is also dealer jargon for taking losing bets and placing them in the dealer's tray.