SHINee's Onew previously headlined for possessing a�powerful special skill, and he showed off its force once more while�guesting on the February 10th episode of "Happy Together 3". MC Yoo Jae Suk expressed his curiosity about Onew's 'ddak-bam' skills, and wanted to experience it for himself. ('Ddak-bam' means to give a clout on someone's forehead�by either flicking one's middle finger against their thumb, or by pulling back the middle finger and snapping it) f(x)'s Luna attempted to stop Yoo Jae Suk from asking, as she explained,�"He's really strong, it really hurts when you get hit by it!" Onew decided to give a demonstration first by breaking a walnut and a gourd, much to Jae Suk's horror. He immediately turned to directors and exclaimed,�"Why didn't you tell me the reality of his power!" Unfortunately, Yoo Jae Suk had to go through with the 'ddak-bam', which resulted in an ugly red mark on his forehead. The MC felt a little sulky about being the only one who had to endure the pain, so he convinced fellow gagman Park Myung Soo to try it for himself. The gagman crumbled on the spot. Park Myung Soo described the pain as being similar to getting hit by a car, "I feel like I just got into a huge car accident!" Check it out the hilarious exchange below (around the 10:00 mark). Source: Medical News Today via Nate