astrochimpEtymology1960, from astro- + chimp, following astronaut. Referring to initial space flight tests involving animals.astrochimp means A chimpanzee used in a spaceflight program. Lexicurio rates it Rare gem — a strength score of 84 out of 100.nounA chimpanzee used in a spaceflight program.“Ham the astrochimp is the first earthly creature to do intelligent tasks in space. He and the other astrochimps prepared for this accomplishment at machines like the one at right where they learned to push levers correctly in response to flashing lights.”