“Dread goose” does not appear to be a fixed, widely established phrase. The most likely reading is simply a playful or eerie combination of dread meaning fear or ominous anticipation and goose meaning the bird, so it suggests a goose that feels spooky, threatening, or absurdly dramatic.

Possible meanings

  • Literal-comic use: a goose described as frightening, intense, or “ominous” for humor’s sake.
  • Fantasy or fandom use: a made-up creature, nickname, or character name, similar to the “Dread Goose” mention tied to a DnD-style creation.
  • Mistyped phrase: it may be someone actually meaning “dead goose,” which has its own symbolic discussion online.

What it usually implies

In casual online language, a phrase like this often works as a joke rather than a formal term. It can imply something awkward, menacing, or exaggeratedly dramatic, because “dread” carries the sense of fear or strong apprehension.

Best interpretation

If you saw it in a meme, forum post, or game context, it probably means an intentionally funny or creepy goose character rather than a dictionary phrase. If you want, I can also help interpret it in the exact sentence or post where you saw it.