nuts

1 nuts /ˈnʌts/ adjective
1 nuts
/ˈnʌts/
adjective
Britannica Dictionary definition of NUTS
not used before a noun [more nuts; most nuts] informal
1 
: crazy
2 
a  : very enthusiastic about or interested in something — often + about
b  : feeling affection or love for someone or something — often + for or about

go nuts

1 
: to become mentally ill : to become insane
2 
: to act in a way that is wild or out of control because of strong emotion
2 nuts /ˈnʌts/ interjection
2 nuts
/ˈnʌts/
interjection
Britannica Dictionary definition of NUTS
US, informal + old-fashioned
— used to express anger, disappointment, etc.