RhymeZone: lunchbox definitions

Definitions of lunchbox:

noun: A container for transporting meals, especially lunch.
noun: (British slang) The male genitals when enclosed in clothing.
noun: (Asia) A lunch packaged in a disposable box to be taken away to eat.
noun: (computing, slang) A luggable; an early laptop computer, usually a unit with a handle and a fold-out keyboard.
noun: (slang) A simple portable transmitter sometimes used in phreaking.
noun: A cocktail made with beer, orange juice, and almond liqueur.

(Definitions from Wiktionary)