Bux

Part of speech: noun

Definitions

1. An informal slang term for money, especially dollars, used in casual speech
2. A clipped colloquial word meaning cash or dollars, as in everyday talk about earnings
3. Casual slang referring to money in general, most often in the sense of dollars

Etymology: "Bux" is a plural form, the plural of "buck" with the final sound respelled. The plural of "buck" is "bucks," and the ending of that word, the /ks/ sound, has been written as a single "x." So "bux" is simply a playful or informal spelling of "bucks," the common slang for dollars, and the spelling compresses the same sounds into fewer letters.