Troppo
Mentally unhinged from too long in the tropical heat.
Person 1"Lou is talking to the geckos."
Person 2"Gone troppo."
You'll also hear
Go troppolose it in the heat
Where it's from
From WWII soldiers serving in the tropics.

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While you're here
Extremely busy. Can be sarcastic about someone who isn't busy at all.
Extremely happy.
Get loud and rowdy, usually said of a party or a crowd. Also used for someone losing their temper.
Scare someone so badly they nearly wet themselves.
Extremely busy, with no hope of keeping up.
Extremely windy.