Recent interesting catchwords from Double-Tongued Dictionary are:
fong kong n. in South Africa and Zimbabwe, a product from Asia, usually believed to be shoddy and cheap. The expression seems to be used both as a count and noncount noun. A similar term is zhing zhong.
scaracter n. an actor at a Halloween-themed amusement park or haunted house. From scare + ch(ar)acter.
bolt-on n. a business or product line acquired by a company in lieu of the company developing that product or expertise for itself. Also as an adjective.