プログレッシブ和英中辞典(第３版)の解説
いきがる【▲粋がる】
assume [put on] a brave manner
- 去った恋人に未練はないと彼は粋がってみせた
He put on 「a brave front [a show of bravado] by saying that he never missed the girl who had left him. - 粋がるなよ
Don't put on airs!