脑补

腦補
nǎobǔ
  1. (Internet slang) to imagine
  2. to visualize

CEDICT

internet slang

Entry Composition

1 脑 nǎo
  1. brain
  2. mind
  3. head
  4. essence
2 补 bǔ
  1. to repair
  2. to patch
  3. to mend
  4. to make up for
  5. to fill (a vacancy)
  6. to supplement