1. 很有可能；十有八九
If you say the betting is that something will happen or is true, you are suggesting that it is very likely to happen or to be true.

1. preoccupied with the pursuit of pleasure and especially games of chance

e.g. led a dissipated life
a betting man
a card-playing son of a bitch
a gambling fool
sporting gents and their ladies

Synonym: dissipatedcard-playingsporting