見せびらかす, ひけらかす, 自慢する
to behave in a way that is intended to attract attention and admiration, and that other people often find annoying
:
• He's always showing off his new car.
彼はいつも新しい車を見せびらかしている。
• She likes to show off her knowledge.
彼女は自分の知識をひけらかすのが好きだ。
