Meaning

1 senses
  1. (uncountable)Used as a placeholder word or metasyntactic variable.

Origin

From the seminal text adventure game Adventure (c.1975), where it served as a "magic word"

From the seminal text adventure game Adventure (c.1975), where it served as a "magic word"; possibly originated as a mnemonic for the subscripts of the cross product in mathematics.

Wiktionary, CC BY-SA 4.0 · source

See also

neighbours in the dictionary
xyzzy — meaning, examples, forms, synonyms | Krumeto