As go at + it; spoken emphasis typically on 'go'. / (informal) To engage in some activity, especially vigorously or enthusiastically. / (slang, intransitive) To fight.

present participle of go at

Used other than figuratively or idiomatically: see go, at. / To try to solve a problem a specific way; to undertake a task. / To initiate an attack on or an argument with.

Alternative spelling of goings-on

Initialism of galactooligosaccharides.

(informal) Any hypnotic drug taken to ensure adequate rest before military operations etc.

plural of no-go pill

plural of no-go theorem

(physics) Any theorem stating that a particular situation is not physically possible.

(slang) Motor fuel. / (slang) Any energizing drink, alcoholic or otherwise.