Definition of "lunchbox" in English

Noun

1. A container for transporting meals, especially lunch.

2. The penis when enclosed in clothing.

3. A lunch packaged in a disposable box to be taken away to eat.

   • Jack was carrying his lunchbox with him.

4. A luggable; an early laptop computer, usually a unit with a handle and a fold-out keyboard.

5. A simple portable transmitter sometimes used in phreaking.

6. A cocktail made with beer, orange juice, and almond liqueur.

7. A person seen as weak and disposable who could easily be sacrificed without much guilt or afterthought. (Can we add an example for this sense?)