Beavis is one of the two title characters from Beavis and Butt-Head, the animated series created by Mike Judge that premiered on MTV in 1993. The show followed two dim-witted teenagers and became known for its crude humour and distinctive voices, which made short lines from it easy to lift for jokes. As soundboards and short-form video grew, brief introductions like this one were reused as reaction sounds, because the character is instantly recognisable from his voice alone. That instant recognition keeps it useful for quick, silly reveals.