four-letter

短语
FREQ #37266

a. 下流的

释义与例句

adj.
  1. 1.

    Used other than figuratively or idiomatically: see four-letter: containing four letters.

  2. 2.

    Consisting of or characterised by swear words and profanity.

    a four-letter reply, a four-letter insult, a four-letter tirade

词源

Figurative use modelled on four-letter word.

来源：wiktionary