What does it mean when a guy gives you a fist bump when you did something great?

Anonymous
This guy and I work together on a project and I make a breakthrough (did something innovative). He gave me a fist bump after I told him about it.
Updates
+1 y
i'm not suggesting that it's any kind of flirting. I just want to ask what kind of sign is he trying to show.
What does it mean when a guy gives you a fist bump when you did something great?
4 Opinion