Lemonade

Introduction
Lemonade is a plastic cup with a straw in it filled with lemonade, its not exactly rocket science...

Personality
He's a rather charming dude, he freaks out when he's eliminated as shown in BOTR 2, where he says "Wait! So you mean?!"

Trivia
Lemonade has another contestant that somewhat looks like him but without the straw, named Apple Juice.