Bobby Hill is the son of Hank and Peggy Hill in King of the Hill, the long-running animated sitcom about a Texas family and their neighbours. Voiced by Pamela Adlon, Bobby is known for his earnest enthusiasm, offbeat confidence, and tendency to throw himself wholeheartedly into whatever he is doing. Short clips of his voice have become popular reaction sounds on meme soundboards, where this one is reused as a compact shorthand for finally understanding something, succeeding, or feeling pleased with oneself.