"bupkiss" a Yiddish expression for "nothing," with variant spelling from the word for "beans."

For and extend discussion of bubkes (much ado about "nothing") see
http://www.wordwizard.com/clubhouse/founddiscuss.asp?Num=738

Bubkes: From the Russian word for beans (and, say some sources, the Yiddish for "goat turd"). Something worthless as against expectations, as in, "I worked on it for three hours –- and what did he give me? Bubkes!"