A person who is usually really stupid. Someone who makes mistakes and doesn't realize it. A person that is clumsy, stupid, or just plain weird. But you know, you can be a stupidhead and still be cool and fun. It just depends.
by Brandage May 20, 2008
An Insult. A stupid stupidhead is someone who either looks like a stupid stupidhead, or is so stupid they have no clue that they are either acting like a stupid stupidhead or are a stupid stupidhead.
Rob was so bad at Clash Royale that his teammate Jonah called him a stupid stupidhead! Bawk Bawk Ba-KAW!
by TheOGStupidHead January 23, 2020
An insult to describe someone being an idiot, or just a flat out childish insult.
E.g.:
Kaito: Explain yourself to everyone!
Kokichi: I don't want to, stupidhead!
E.g.:
Kaito: Explain yourself to everyone!
Kokichi: I don't want to, stupidhead!
by It’s Chicken September 28, 2017