adjective
(informal) Highly skilled.
(informal) Displaying talent.
noun
(informal) Someone with exceptional skills in a certain field.
A type of firefighter highly skilled in wildfire firefighting without external support, using basic tools that are backpacked in and manhandled about.
(US) A portable device that is used to jump-start an automobile battery, or the electrical output of such a device.
(US, rail transport) A fast freight train.
(slang) A dose of recreational drugs deliberately laced with poison.
A lethal injection of heroin or another opiate.
verb
(transitive, slang) To give (somebody) a dose of recreational drugs deliberately laced with poison.