yǎnɡ
技痒
jì yǎng
Itching to show off one's skills; eager to display one's abilities.
见人打球，他心里直发痒。
jiàn rén dǎ qiú, tā xīn lǐ zhí fā yǎng.
Seeing people play ball, he felt an irresistible urge to join in.