In the clip you see the rapper Kleine Sanders, he’s a local celebrity in Belgium, more specifically in the province of West-Flandres. During a performance, someone in the crowd threw an onion at him. He took a bite from it and then threw it back in the crowd, and asked for the crowd to throw it to him once again, but this time they also had to take a bite out of it. The second time the onion was thrown to him, he caught it in one hand and the crowd went wild. It was a really funny experience. At the end of the clip, he yells something like ‘give it up for the onion catcher!’ and then everyone cheers him on.