toke
n.— «While raking in some of my misplaced chips, a craps dealer explained to me that on good nights a personable dealer can make $500 in tips, or “tokes,” as he called them.» —“What Happened in Vegas Stayed in Vegas His Novel” by Charles McGrath New York Times Magazine Jan. 27, 2008. (source: Double-Tongued Dictionary)
Yup, a toke is definitely a tip for the dealer at the casino table games.