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absolutely nothing; something worthless; also written bupkis , bupkes , bupkus
(also boy howdy, boy o boy, boys) An exclamation of amazement, shock, happiness, intensification, etc; jeez, man, wow: Boy, that was a close!/ Boy o boy, isn't this great? (1890s+)
big boy, fair-haired boy, good old boy, old boy network, one of the boys, paddy, poor boy, pretty boy, that's my boy, tomboy, walkboy