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.
(flÄm) n. 1. Thick, sticky, stringy mucus secreted by the mucous membrane of the respiratory tract, as during a cold or other respiratory infection. 2. One of the four humors of ancient and medieval physiology, thought to cause sluggishness, apathy, and evenness of temper. 3. Sluggishness of temperament.