四六儿不懂

四六兒不懂
sìliùrbùdǒng
  1. (Northeastern Mandarin) to be completely ignorant (of rules, customs, etc.)
  2. to be completely ignorant (of rules, customs, etc.)

Wiktionary

Entry Composition

1 四 sì
  1. four
  2. 4
=2 六 liù
  1. six
  2. 6
=2 六 lù used in place names
=3 儿 ér
  1. child
  2. son
=3 儿 r
  1. non-syllabic diminutive suffix
  2. retroflex final
4 不懂 bùdǒng
  1. (as a verbal complement) unable to comprehend (when seeing, hearing, etc.); cannot
  2. to not understand
  3. unable to comprehend (when seeing, hearing, etc.); cannot