Possible Clues:

• "The Biggest Loser" contestant
• Deliberate loser
• One who's determined to lose
• The less you see of this person the better
• Scale user
• Mike Myers ''SNL'' character
• German man is slimmer?
• The demon in Norman Mailer's novel 'The Castle in the Forest'
• The weight-watcher must be put off grabbing one
• One determined to lose