Literally means "look it up on Babelfish.com", a website that translates text from one language to another. Has insulting connatations, stemming from the inclusion of the term " fish shit " in the word.
Mary: I want to spend the rest of my life with you, mi amor.
Dave: Huh? What'd you call me?
Mary: ( annoyed ) Babelfishit!!
Prices shown in USD.