(Bagai beruk kena belacan) - Like a monkey who eats belacaan (a Malay traditional foodstuff; chilli paste which is pungent and spicy ala chili con carne). This means that a person is in a state of panic or hyperactivity, as a monkey would be shouting and screaming after eating said food.
Hahahahah! I can't stop laughing after reading this Malay proverb!
This site is really for Justin for his Bahasa Malaysia homework.
Good luck Justin!