lunchbox

1. (slang, UK) The penis when enclosed in clothing.Examples: "The campaign tagline, 'I've got a tiny packet', is written across [Linford] Christie's trademark impressively muscled upper body. 'Tiny packet' makes us remember that Linford is known for his 'lunchbox' from his heyday as a sprinter because of the bulge apparent in his lycra shorts. His lunchbox and now his tiny packet allude to the diminishing of black men to just their genitals[…]"Synonyms: basket, packet, packageUKslang

2. (especially Asia) A lunch packaged in a disposable box to be taken away to eat.Examples: "Jack was carrying his lunchbox with him."Synonyms: box lunch

3. (computing, slang) A luggable; an early laptop computer, usually a unit with a handle and a fold-out keyboard.Examples: "You'll find a mix among clamshell laptops for strong laps, lunchboxes, and sewing-machine configurations; the latter two designs typically have detachable keyboards."; "The performance difference between desktops and lunchboxes was practically nil."slang

4. (slang) A simple portable transmitter sometimes used in phreaking.slang

5. (slang, idiomatic) A person seen as weak and disposable who could easily be sacrificed without much guilt or afterthought.idiomaticslang