A straddle is any set of offsetting positions on personal property. One example, is a put and call option on the same number of shares of a particular security, with the same exercise price and expiration date.
Definition of flack for English Language Learners. : a person whose job is to make people like or be interested in someone or something.
The definition of a flail is a farm tool that is a long-handled stick that is swung to thresh grain. An example of a flail is a tool used to toss grain up in the air. To flail is defined as to wave or swing about wildly or to flounder. When you wave your arms around wildly, this is an example of flail.