Dictionary / Vocabulary / 洒落
しゃらく · also しゃら、しゃれ、シャレ
free and easy; open-hearted; relaxed; not fussy
JLPT N1 common word Also written 灑落
非常にうまい洒落だったので、満場爆笑した。
It was such a nice joke that everybody burst out laughing.