A person who is exceptionally skilled or successful

• Often suggests confidence or showiness

Highly skilled or impressive; top-notch

• Used attributively before a noun

A member of an elite wildfire firefighting crew

• Operates self-sufficiently on rugged terrain

An expedited freight shipment, run, truck, or train

• Designed for speed over regular service

A portable device for jump-starting a vehicle battery

• Also, the burst of power it delivers

A dose of drugs deliberately laced to poison the user

• Slang; associated with criminal activity