Meaning

1 senses
  1. (humorous)The naked eye.

    Don't worry, I'll use my trusty mark 1 eyeball here.

Origin

In reference to mark 1; the designation commonly given to the first version of an inventio

In reference to mark 1; the designation commonly given to the first version of an invention, before the addition of any improvements or enhancements.

Wiktionary, CC BY-SA 4.0 · source

mark 1 eyeball — meaning, examples, forms, synonyms | Krumeto