Bunions sound like something you can eat. A bun with onions with it?
Butterflies sound like a type of fly that likes butter. Or a novelty restaurant joke ("Waiter, there's a fly in my butter!")
Badger. The only animal with a name tag.
Beef jerky. What did it do to warrant being called a jerk?
Broad daylight. As opposed to narrow daylight?
Blog. It sounds like the merger between the words web and log. Web log. Blog. Oh, wait...