What does this word mean?

You are sitting in your room scanning through your copy of National Geographic when you encounter an ad for a contest that Merriam-Webster is having. The winner gets to create the meaning for a new word they are about to introduce in their latest dictionary. You tear the page out and throw it into your trash can (you are more of a numbers person, don't much care for the words). Because you are incredibly lazy you don't ever empty that trash can, opting instead to make your mother empty it for you. You're about to pay for that. She empties the can, finds the page, and enters your name into the contest, claiming it will be "fun and educational". Slightly disgruntled, you shake it off. You won't win anyway. Well, guess what...you did. You think about rejecting the offer but you would hate to disappoint mom. So you take a trip and meet with the Merriam-Webster people, and learn that the word you will be igning a meaning to is "sperritrop". So, what does it mean?