Idiom
make book on something
Theme: PREDICTION - BETTING
to make or accept bets on something. (Slang.)It looks as if it will rain, but I wouldn't make book on it.John's making book on the football game this Saturday.
Slang
make book on something
Theme: GAMBLING
tr. to make or accept bets on something.Well, she might. But I wouldn't make book on it.Don't make book on my success in this game.