Leap out of one's skin.
Beside oneself with joy.
Leap with joy.
To tread on air.
Turn one's head.
eg:He is ready to leap out of his skin on learning that he has been awarded the scholarship.
中英俚語俗語來源:晉書·阮籍傳:“當其得意,忽忘形骸。”
同義詞:手舞足蹈 Dance for joy.