single-stakes-about noun in gambling, a type of conditional bet UK
A bet consisting of two singles, each with an any-to-come [a type of conditional bet] single at the same stake on the other selection. Sometimes denoted by a cross or a series of crosses between the selections (e.g. £2 A xxx £2 B). — David Bennet, KnowYourBets, p. 26, 2001