腦補 [脑补]

Jyutping nou5 bou2
Pinyin nǎo bǔ

Definitions (粵典–words.hk)
  1. 動詞、潮語
    靠​想像力​去​增補​原本​冇​講​過​嘅​部份
    to headcanon
    • 佢都冇講過，你唔好腦補啦。
      佢都冇讲过，你唔好脑补啦。
      nkeoi5 dou1 mou5 gong2 gwo3, nei5 m4 hou2 nou5 bou2 laa1.
      She never said that. Please don't headcanon.
Definitions (Wiktionary)
  1. verb, especially, neologism, slang
    to dream up a fantastical or farfetched continuation to affairs

腦補 [脑补]

Jyutping
Pinyin nǎo bǔ

Definitions (CC-CEDICT)
  1. (Internet slang) to imagine
  2. to visualize
Examples (粵典–words.hk)
  1. Cantonese
    佢都冇讲过，你唔好脑补啦。
    佢都冇講過，你唔好腦補啦。
    nkeoi5 dou1 mou5 gong2 gwo3, nei5 m4 hou2 nou5 bou2 laa1.
    • She never said that. Please don't headcanon.