In football, a bet on whether there will be either more or less than a specified number of goals.
An underdog is the opposite of a favourite; a competitor that's expected to lose. Betting on the underdog can be part of an effective betting strategy.
A Union Jack is a wager on nine selections, usually marked on a three-by-three grid and consisting of eight trebles.
An up-and-down bet involves placing two any-to-come (ATC) bets, involving the same two selections. If one selection wins, the original stake is placed on the second selection. If both selections win, each original stake is placed on the other selection.