It defines how stupid, slow and dense a person is.
Afiq is mangkuk ayun since he never gets what the lecturer said.
by Mengkok December 29, 2017
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used in Malaysia as a word to call those pigs who don't give a signal while driving at the junction.
situation 1:

teacher: why are you late?
student: there was a mangkuk ayun at the junction.

situation 2 :

ray: *driving*
mangkuk ayun: *don't give a signal and continue to watch trump's conference*
ray: WOI MANGKUK AYUN
by tacoodt October 28, 2020
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