Possible Clues:

• Like bodybuilders, in competition
• Like a well-___ machine
• Treated with a slippery or viscous liquid
• Attention-seeker was in front, running well after taking fluid
• Dirty, having cap removed and treated with grease
• Drunk (slang)
• Like many baking sheets before baking
• Noisy no more, maybe
• No longer squeaky (one hopes!)
• Social need, at regular intervals, to get drunk in America