lợn

• (Northern Vietnam, humorous) nhợn

Alves (2022) entertains the possibility of it being a borrowed from Old Chinese 豚 (OC *lˤu[n]ʔ) (B-S) (SV: đồn); the vowel correspondence, however, is hard to explain.

A folk etymology explain that it's a corruption of lớn ("big; large")

• (Hà Nội) IPA^(key): [ləːn˧˨ʔ]
• (Huế) IPA^(key): [ləːŋ˨˩ʔ]
• (Saigon) IPA^(key): [ləːŋ˨˩˨]

(classifier con) lợn • (𤞼)

1. (Northern Vietnam) pig, swine
2. (chiefly Northern Vietnam) a person:
   1. (derogatory, vulgar) a contemptible, objectionable person.

      Ơ con lợn này! ― Oi you bloody swine!

   2. (figurative, derogatory) a glutton.

      Con lợn này ham ăn vãi! ― This pig is gluttonous as hell!

   3. (figurative, humorous) a fat person.

      Bụng con lợn này to vãi cả chưởng! ― This pig's belly is big as hell!

3. short for lợn đất (piggy bank)

   Đút tiền lì xì vào lợn đi con! ― You should put that lì xì money into the piggy bank!