Someone who frequently participates in or attends Model UN conferences as a delegate, an organizer, a staff member, or a faculty advisor. Can be applied to an individual that used to be very active in Model UN but now only drops by during conferences or hangs with fellows that are still active.
All those MUNers must really enjoy that conference or they wouldn´t keep coming back each year.

Only a MUNer would be weird enough to know Kofi Annan´s middle name.
by Quirozom December 1, 2006
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The bad bitch person in this world.most toxic thing in this world is his mouth.

Don't like to talk with children or any stupid kids.Talk shit go die.

His obsessed with Billie eilish.
Mean girl 1:omg who's that?so ugly.Hahahaha.

Mean girl2:his name is Muner,his a most toxic people in this world.

Mean girl 1:Hahahaha you joke right? Let's go.
by Rash demon November 24, 2021
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