[pavel_lishin]

By that definition, any language I don't speak is gibberish, and yet if someone asked me "what does 'Je n'ai pas mangé depuis six jours' mean", replying that it's gibberish is obviously wrong.

[deanishe]

Seems to me, your comment presumes a certain completeness on the part of the utterance/code snippet that isn't necessarily given.

[n6h6]

That's not really a good comparison, no. The code snippet is more comparable to a sentence fragment, which more often than not is "gibberish".

For example, taken out of its original context, this sentence fragment from your comment is meaningless:

"that definition, any language"