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.
(kwÃ¦k ) Word forms: plural , 3rd person singular present tense quacks , present participle quacking , past tense , past participle quacked. 1. countable noun [oft NOUN noun] If you call someone a quack or a quack doctor, you mean that they claim to be skilled in medicine but are not. [disapproval] I went everywhere for treatment, tried all sorts of quacks.