“萬眾美劇迷喜愛的謝耳朵同學要來北京啦！”“真的？我要高興得昏過去了！”“當然是假的。Bazinga！”

Bazinga is a term used by "The Big Bang Theory" leading character Dr. Sheldon Cooper as a follow-up to jokes, pranks, and chuckle-filled "gotcha" situations. Sheldon began using the term just before the third season started.
Bazinga是《生活大爆炸》男主角謝耳朵常說的一個口頭禪，多用在玩笑、惡搞以及令人措不及防的暗諷之后，中文意思類似于“逗你玩兒”。這個詞在第三季開始之前首次亮相。
Following is a typical "bazinga" conversation between Sheldon and his roommate Leonard:
以下是謝耳朵和他室友萊納德之間的一段bazinga對話：
Sheldon: "Leonard, you may be right. It appears Penny secretly wants you in her life in a very intimate and carnal fashion."
謝：萊納德，也許你是對的，佩妮的確希望你走進她的生活，同你發展更親密更深層的關系。
Leonard: "You really think so?"
萊：你真這么想？
Sheldon: "Of course not. Even in my sleep-deprived state I've managed to pull off one of my classic pranks. Bazinga!"
謝：當然不是了。即使處于睡眠不足狀態，我的惡作劇還是屢試不爽。Bazinga!
Clearly, Sheldon uses the term as a stinging barb meant to impress his cleverness upon victims.
很顯然，謝耳朵是想用這個詞讓他的惡作劇對象們對他的智慧完全折服。