A jacket with an elasticated waist and a zipper up the front, worn by athletes while training; worn by others as a fashion accessory, usually carrying a team logo.

(transitive, informal) To put into a persistent vegetative state.

(slang) Combined with a noun to indicate a layering, nesting, or recursion of the thing in question.

Of, supporting, pertaining to, or advocating mutualism / (biology) symbiotic