Get nuts

Jordan, who is the head of a brokerage firm, and his crew are planning to launch dwarfs at a target:

+ I'm gonna throw the shit out of this little fucking thing. So if it gets hurt, what happens? 'Cause we're gonna get fucking nuts.
- I don't think he's gonna get hurt. They got like superhuman strength.

(The Wolf of Wall Street)

What is the definition for "get nuts"?

Thank you.

'Cause we're gonna get fucking nuts. -> because we will act insanely.
Insanely -> in a completely and irresponsibly unrestrained manner.

One of the many definitions of the informal "get" is "become."