l4m3r
someone who ruins a good time by acting like a total waste of oxygen
At the movie, my friend was a l4m3r. He talked the whole time and no one could hear the movie.
My neighbor is a l4m3r. He yells at his dog and then pets it when it bites him.
During the game, my brother was a l4m3r. He kept cheating and then complained when we beat him.