Every Saturday I’ll give you a couple of idioms to learn. An idiom is a saying or phrase whose meaning cannot be taken from the literal meanings of the words.
jack up: set a high price, especially one that is artificially high.
Example:
Did you notice? The gas station on the corner jacked up their price overnight by twenty-five cents a gallon.
go public: make shares of a privately owned company available for sale to the public.
Example:
Uncle Jack always regretted he didn’t buy shares of Apple computers when the company first went public.