The Lumberjack is a one-time villain from the Cartoon Network original series Teen Titans Go!, only appearing in the episode "The Bergerac", as part of the Superhero Summer Camp miniseries. He is a lumberjack who is always trying to steal Robin's girlfriends.
Robin retold the other Teen Titans the story of his first love, which happened at a summer camp once. Robin's girlfriend was a tree that he used to make out with. One fateful day, The Lumberjack came by and chopped down the tree that Robin was in love with and took her away, stealing his girlfriend. Robin cried and mourned as The Lumberjack took off with his girlfriend and he still remembers it to this very day.
At the end of the episode, Robin fell in love with Wonder Girl and was about to kiss her on the lips and officially become her boyfriend, until The Lumberjack made a shocking return, getting ready to steal Wonder Girl from him just like he stole his tree girlfriend. Robin started running straight toward The Lumberjack to attack him, but The Lumberjack simply leaned back on his ax and punched robin in the face, knocking him down and defeating him with just one punch. When Robin fell down, he got crushed straight into the ground and The Lumberjack thought that he was victorious. He was about to claim his prize when Robin arose from the ground and beat the snot out of The Lumberjack with his well-toned muscular thighs, causing The Lumberjack to tear up and cry, running away like a pansy, which meant that Robin won the fight and the heart of the Wonder Girl.