$3,000 o'clock

$3,000 o'clock is both the time and money lost while losing time and money at a casino.

(At the casino)
Her: What time is it? There is not one goddamn clock in this place!
Him: (Looking at ATM receipts and his wallet) "I'd say it about $3,000 o'clock!"
Her: What the damn hell! Let's get out of here.