I was in a betting server and I bet 1k. I minimized toribash went on facebook and started to talk to my cousin. Then I opened toribash again and it said not connected and I lost 1k can I get it back?

Did the person you bet on win?

Uh that is the risk of betting.
You probably pinged and lost your bet.

I think I did ping but I tried going back to the server but then the whole server list was white.

Nope. That's one of the risks of betting.

You can always comfort yourself with the thought that you've helped Toribash's economy.

Just one of the risks of betting, I'm afraid.
Usually, I would refund the people who'd go through the trouble of making a whole thread about this, but if I do refund you, random threads will pop out of nowhere, asking for refunds to their bets.
Closed - PM me if you have any questions.