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.
Define rucksack. rucksack synonyms, rucksack pronunciation, rucksack translation, English dictionary definition of rucksack. n. A knapsack. n a large bag, usually having two straps and a supporting frame, carried on the back and often used by climbers, campers, etc.