1. Godan verb with 'ru' ending, Intransitive verb

   1.

   to put on airs; to throw one's weight about; to swagger

Example sentences

• 威張る人って、好きじゃないのよね。

  I don't like people who act all high and mighty.

• 人前で偉そうに威張るのやめた方がいいよ。

  You should stop acting so arrogant in front of other people.