per Google search:
http://www.google.com/search?num=30&hs=OF7&hl=en&lr=&safe=off&client=firefox-a&rls=org.mozilla%3Aen-US%3Aofficial&q=%22prop+bet%22+poker&btnG=Search

Link doesn't work here too well. But go to Google and put in:
"prop bet" poker

Or copy the link and put it into browser.

Robt.