(US) Initialism of Junior Classical League. / (computing) Initialism of Job Control Language.

(video games, informal) The Wii Remote, the primary controller for the Nintendo Wii game console, noted for its motion-sensing capabilities.

(UK dialectal, Northern England, Scotland) Weak; unstable; unreliable; not to be depended on.

(geology, of rocks) Derived from the same magma.