peek over (something)
1. To glance or peer shyly, quickly, or inconspicuously over the top of something. We peeked over the fence when we heard the neighbors start fighting. I caught the child peeking over the top of the sofa to see what was going on.
2. To be revealed partially above the top of something. All I could see was the man's head peeking over the top of the wall. Your underpants are peeking over the top of your jeans, Tom.
peek over something
1. to examine something with a quick glance. I really can't say how good the story was. I only peeked over it. I peeked over your manuscript, and it looks good.
2. to raise up and look over some barrier. I peeked over the wall and saw the lovely garden. Don't peek over the sofa and let Roger see you. It will ruin the surprise.