As a group. / In the same place. / All at the same time.

(set phrase, colloquial) Suddenly, quickly, without warning.

Alternative form of all-rounder

(cricket) The state of a side having no more men to bat, thus ending its innings.

(idiomatic) With maximum effort. / (idiomatic) Without regard for risk. / (idiomatic) Altogether; by far.

(collectively) All; everyone. / (separately) Each one.

(used after a country name, usually ironic or humorous) Invokes a perception of the specified country as superior to others, or having a supreme status when compared to others.

(idiomatic) On one's hands and knees. / (idiomatic, often followed by "with") In a manner which is similar in nature or effect to something else; consistently.

(idiomatic) Finally, permanently, conclusively.

(idiomatic) Chaos; a chaotic situation lacking rules or control. / (video games) Deathmatch, sometimes specifically one in which every player is pitted against all the others.