A fuknik is someone that fucks-up frequently. It's also exclaimed out of frustration by teammates when someone on the team fucks-up.
Originates from the many Sputnik space program fuck-ups.
Nicholas: (shanks the ball, yet again)
Paul: "Go easy, you'll make him cry."
Eric: "That fuknik needs some skills-N-drills practice. He sucks."
Paul: "It won't help, he double-sucks."
Nicholas: (overhears and leaves sobbing)