1. A sac (bag) of any kind. Could be a backpack, a purse, a
plastic bag, a bag for testicles, or any kind of bag/device that holds stuff. See example #1.
2. Loosely used to describe anything. Also used as a suffix for one's name by a small, cultish group of
linguists residing in the nation's capital. See example #2.
3. Inserted innocuously into sentences as a
substitute for words rhyming with it. See example #3.