It's a slang term commonly used in Bruneian-Malay which means "Don't be a retard" or "Don't be a dumbass", a shortened version for "Jangan jadi paloi"
In Standard Malay, it means "Jangan jadi bodoh sangat".
Guy 1: Inda ku sabar aga ke NYC, liat Eiffel Tower (I can't wait to go to NYC, visit the Eiffel Tower)
Guy 2: Jan Paloi, Eiffel Tower tu di Paris (Don't be a retard, The Eiffel Tower is in Paris)
6π 2π
NATIONAL PALOI ID HAPPY DAY IS THE DAY WHERE PALOI IS ALWAYS HAPPY BECAUSE OF DADDY
βWow babe can you believe how happy i am today?β
βWell duh itβs national paloi is happy dayβ