The last of one's money; all of one's money.

(idiomatic) To be absolutely sure of something; to be certain enough of something to wager everything.

(Australia, attributive) A tax avoidance scheme from the 1970s.

(mathematics) The closed manifold obtained by identifying the boundary components of the annulus so that the resultant surface is nonorientable.

(Jamaica) A kind of fly.

In earnest; sincerely; with one's full feeling.

A bottle, commonly made of brown or green glass, designed as a container for beer.

(physics) The antiquark corresponding to the bottom quark.

(games) A party game in which the players sit in a circle and spin a bottle in the middle, having to kiss (or perform some other dare with) the person at whom the bottle points when it stops.

(Australia, colloquial, informal) A fair chance, a reasonable opportunity; a fair go.