Here are a few options for a WordPress post tag description for “乖乖” (Traditional Chinese) depending on the nuance you want to convey:

**Option 1: Simple and Direct (Good for beginners or general posts)**

* **Description:** Tag for posts discussing the popular Taiwanese snack, “Guai Guai,” or related themes.

**Option 2: Emphasizing the colloquial meaning (Useful for posts humorously related)**

* **Description:** Posts tagged with “乖乖” (Guai Guai) – also meaning “be good” – often used for luck, especially in the tech world.

**Option 3: More explanatory (Good for explaining the cultural context)**

* **Description:** “乖乖” (Guai Guai) – a popular Taiwanese snack often placed near servers, computers, and machinery to (humorously) encourage them to “be good” and function properly. This tag is used for posts referencing the snack or its cultural significance.

**Option 4: Concise and Specific (For a limited topic)**

* **Description:** Articles referencing the Taiwanese snack “乖乖” (Guai Guai) or its use in the IT industry.

**Option 5: Broader scope (For a range of discussions)**

* **Description:** Topics relating to the Taiwanese snack “乖乖,” its use for good luck, and its cultural relevance.

**Choosing the Right Description:**

* **Consider the content:** What kind of posts will you be tagging with “乖乖”? Will it be about the snack itself, its cultural meaning, or applications in technology?
* **Target audience:** Who is your audience? This affects the level of explanation needed.
* **Keyword prominence:** If relevant, consider if you could incorporate SEO keywords in the description. For this particular term “乖乖” is the main keyword.
* **Conciseness:** WordPress descriptions should be relatively concise.

I recommend choosing the option that best reflects the common uses of the tag on your site and the information you are aiming to provide in the description. The best choice depends on what you want the tag to represent.