Verb (5-dan, う, intransitive)
1.  to go mad;  to lose one's mind;  to go crazy;  to go insane
2.  to get out of order;  to go amiss;  to malfunction;  to become imprecise
3.  to go wrong (of a plan or expectation, etc.);  to fall through;  to get mixed up
4.  to go crazy (over someone or something);  to get enthusiastic;  to go wild