Originates from a Youtube video showing a Malay kid showering infinite praise for the cameraman's mother.
(1) Your mother is an environmentally-friendly woman who cares deeply about forest reserves and everything eco-related.

(2) Ur mom green
Ali: Mak kau hitam!
Abu: Mak kau hijau!
by Ali Abu bin Abu Ali April 10, 2018
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Mak Kau Hijau originally meant Your Mother is Green.

When it's referred to people, such as "You're a jerk! Mak Kau Hijau!" means that you are strongly hate or dislike that person.

You mostly say it to someone you are upset with, or someone you hate.
You're a jerk! Mak Kau Hijau!
by Albert Johanson May 15, 2021
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Biasanya digunakan oleh anak keren atau kool kids saat sok2an ikut aprhryl moubhp dan berhasil nipu temennya dengan cringe :v
Kena kau ajg kena tipu lo bgsd wkowkw
by Eed...pepega March 31, 2020
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A word use toward someone. Its the same as “what are you stupid?”
Ali: 9 + 10?
Abu: 21?
Ali: kepala hotak kau!
by Okuko January 4, 2022
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This came from Malay word. It's also a curse word came from young boy who fight which each other to win when played football and mocked their mother's friend. It's means your mom green.
Ali: can i borrow your money
Abu: mak kau hijau
by Lyuboz July 25, 2022
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means; (Your mom is the leader of angels in the heaven)
When people say,

People: MAK KAU HIJAU!!
You should say: Thank you.
by hongtits January 18, 2022
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Something to describe how beautiful your friend are.Somedays, people say this to wishing happy birthday for everyone who live in Malaysia.
Najib:I would like to say mak kau hijau to my crush, Levi at Malaysia!!
Tesco: She is like mak kau hijau,so garam 🥰wait...are you gay
Najib:No I don't... We're gay
Tesco: SWAGJUTSU
by Charli d mama milo March 10, 2021
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