He just wasn't protecting his hand. He was lifting his hole card way too high.
7 seconds sound clip from the Casino (1995) movie soundboard.
You can hear this line at 00:34:38 in the Blu-ray version of the movie.
Quote context
[...]
- You can spot these assholes by watching the way they bet.
- If he wasn't so fuckin' greedy, he'd have been tougher to spot. But in the end, they're all greedy.
- I got a feelin' about the future and it ain't too good I know that.
- I saw that the dealer was weak, but he wasn't in on it.
- He just wasn't protecting his hand. He was lifting his hole card way too high.
- Now, here's this guy reading the dealer's hole card and signaling his buddy at this table.
- And that's just what these hustlers look for.
- They cruise from casino to casino looking for weak dealers the way lions look for weak antelope.
- Operator, this is Mr. R. Get me Armstrong and Friday over at pit two right away.
[...]