|Voiced by:||Sam Marin|
|Appears in:||"Go Viral"|
Wedgie Ninja, is the name of an internet sensation, who appears in internet videos in "Go Viral".
He appears to be a ninja, wrapped up in black clothing, who goes up and gives random people wedgies, then drops a bear who plays a glockenspiel and then farts on his victim(s). He was trapped in a video by the Warden of the Internet to repeatedly attempt to wedgie someone, but gets tired and gets hit numerous times. He sacrificed his life to save Mordecai, Rigby, and Pops by giving the Warden of the Internet a wedgie, but he soon died in the explosion that occurred, yet he managed to kill her but he also killed himself in the progress. His last words to Mordecai and Rigby were, "Link to my videos!"
- Muscle Man and Hi Five Ghost think he is funny. Mordecai and Rigby don't think the same, but seem to gain a respect for him after he saves their lives from The Warden of the Internet.
- He might be a parody of two YouTube sensations; Afro Ninja and Ask a Ninja.
- When he wedgies the Warden, Mordecai and Rigby say they owe him one, although they can never pay him back.