From a list of metaphors and analogies used in high school writing:

• She had a deep, throaty, genuine laugh, like that sound a dog makes just before it throws up.
• Her vocabulary was as bad as, like, whatever.
• He spoke with the wisdom that can only come from experience, like a guy who went blind because he looked at a solar eclipse without one of those boxes with a pinhole in it and now goes around the country speaking at high schools about the dangers of looking at a solar eclipse without one of those boxes with a pinhole in it.
• The plan was simple, like my brother-in-law Phil. But unlike Phil, this plan just might work.
• Her hair glistened in the rain like a nose hair after a sneeze.
• The hailstones leaped from the pavement, just like maggots when you fry them in hot grease.

View the complete list here