This was a phrase popular in Northern Lower Michigan in the mid-to-late 1980's. It is believed to have originated from a highschool teacher in Pentwater trying to calm down a classroom before lunch hour. It was uttered in various circumstances, generally associated with mealtimes.
Kids standing in line at a McDonald's. One turns to the other and shouts (preferably in the other's ear): Wanna eat? Shut up then!
by dcurtis3727 March 14, 2008

When u shut the fuck up abt national days that ur sorry ass makes when u have no friends, and u post it on ur story telling ur cool
“National grab ass day”
“Shut the hell up fag bag no one gives a flying fuck abt u”
“Ya bro ever heard of shut up with national days”
“Shut the hell up fag bag no one gives a flying fuck abt u”
“Ya bro ever heard of shut up with national days”
by ShutUpKids April 10, 2019

A common response, although said in many different ways, to tell someone that their comment is neither intelligent nor relevant.
p1: Justin Bieber's penis is the size of the dislike bar!
p2: Just stfu and enjoy the music
p1: It's an insult to eminem that they put gaga's banner on this video.
p2: Just Shut up, enjoy the music.
p2: Just stfu and enjoy the music
p1: It's an insult to eminem that they put gaga's banner on this video.
p2: Just Shut up, enjoy the music.
by Javadriveby November 2, 2011

by coolboy122131 June 8, 2022

This day is for anyone named mia who just needs to shut up sometimes, commonly celebrated on September 8
by Personpersonson September 1, 2020

by Gringo man Esteban June 20, 2018

Jeffrey: I just got a-
Person: Shut the FUCK UP
Jeffery: What the hell bro
Person: its shut up Jeffrey day
Jeffrey: Ok have a good day
Person: Shut the FUCK UP
Jeffery: What the hell bro
Person: its shut up Jeffrey day
Jeffrey: Ok have a good day
by P3sto March 16, 2022
