The story is that Teemo is make a deal by selling his shrooms to the minions. The minions double cross him and Teemo's team takes them out. Teemo is snorting crushed shrooms in the beginning, just fyi.
It is suppose to not have any words in the music or the animation.
This animation started out as a different idea and as time went on it turned into something else. It was made to be watched at least once but not something that would be watched over and over.
And remember ever animator likes to focus on different things in each animation.