Victory! In your face! Used to announce an accompishment.

ORIGIN: Derrived from a 2011 FedEx commercial where a mutli-tasking senior mananger, while tatooing his own back, simultaneously defeats 2 chess apponents and announces "Checkmate, Sergei!".

surrounding a person and threatening their life..i guess.. like in "still bout it" where silkk the shocker says "checkmate" whem he sneaks up to tha guy with a gun. tha other guy has nowhere to go. based on the term they use in chess except in real life.

Although synonymous with "unbeatable", it can be used metaphorically to refer to anything you hold in high esteem.

Derived from the game of chess; checkmate is an offensive position in which the loser cannot move his/her king out of "check" (ie: imminent defeat).

Checkmate therefore means "unbeatable" with the implication that it is highly desireable to obtain.

a notorious high school street gang/secret society of Dublin, Ohio renowned for their chess-playing skills.

The group holds much influence at the Dublin schools. It had humble beginnings as it was originally a simple middle school chess club. Later, it evolved into an alliance of nerds, geeks, bandies, and outcasts of every possible kind. The organization’s top seven members sit together at a special table each day during lunch. On designated days, the members of this federation wear a distinctive, black Checkmate! shirt that strikes fear into their enemies.

a notorious high school street gang/secret society of Dublin, Ohio renowned for its members’ chess-playing skills; abbreviated as the GK

The GK had humble beginnings as it was originally a simple middle school chess club. The story of how it thrived and prospered is an epic tale too long to be documented here.
When its members entered the Dublin high schools and planted its agents far and wide, a vast network grew out of their great ambitions. Later, it eventually evolved into an alliance of nerds, geeks, bandies, and outcasts of every possible kind.

The GK now holds much influence at the Dublin schools despite being an underground secret society. The group is especially notorious for its rigging of student elections. The organization’s top members sat together at a special table each day during lunch until the Great Schism of 2006. On designated days, the members of this group wear a distinctive, black Checkmate! shirt that strikes fear into the hearts their enemies.

a notorious high school street gang/secret society of Dublin, Ohio renowned for its members’ chess-playing skills; abbreviated as the GK

The GK had humble beginnings as it was originally a simple middle school chess club. The story of how it thrived and prospered is an epic tale too long to be documented here.
When its members entered the Dublin high schools and planted its agents far and wide, a vast network grew out of their great ambitions. Later, it eventually evolved into an alliance of nerds, geeks, bandies, and outcasts of every possible kind.

The GK now holds much influence at the Dublin schools despite being an underground secret society. The group is especially notorious for its rigging of student elections. The organization’s top members sat together at a special table each day during lunch until the Great Schism of 2006. On designated days, the members of this group wear a distinctive, black Checkmate! shirt that strikes fear into the hearts their enemies.

To say when one does something great/awesomenessoutstanding beyond words