'Gone south.' 'Lost it.' 'Non compos mentis.'

This term reflects the fact (for some) that
functioning (in whatever capacity) can be
severely limited on this day because of
its historic role as a down-easy day.

The term is not restricted to Sundays. It is
a cognate of the verb 'to sunday', meaning
'to underdo', 'to function at a low level'.
Man, did you catch DeeCee's slack getback.
He really sundayed it. Wait until tomorrow.

by Ward Smith March 1, 2009
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was made for football.
by 411sph September 21, 2008
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The first day of every week that is extremely boring and there is never anything to do on, especially if you live in a place like Fort Ashby , West Virginia.
Ah man, I really hate Sundays, there so boring, especially living here.
by yeahyeahyeahyeah2013 January 15, 2012
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Sunday is beautiful brilliant, and she sweet and kind and everyone like Sunday, but on the other side she can be a devil. Many boys fall I love with her, but she only got after one but at time.

But have the sweetest kindness. Who don't like thins girl
It's means the person was born on a Sunday. The most important day on the week.
by Victoria.aka January 6, 2018
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It’s a day where hoes are put to the side and you play with the boys
Guy 1: damn today I have a date with this how

Guy2: Nah dude Sunday’s is for the boys
by Nut sandwiches June 30, 2019
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A rock song by Irish Band U2, in protest of British presense in N. Ireland.

Also, a title given for an incident when 29 people in an apparent peace rally were killed by British paratroopers.
Guy 1: Man, that song 'Sunday Bloody Sunday' really strikes a chord!
Guy 2: Yeah, that song is U2's protest against stuck-up Britons.
by Macphisto May 28, 2006
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The act of covering someones car in the ingredients typically used for making a hot fudge sunday in an act of retaliation. Most often done in an inebriated state, outside creepy dive bars like the Cove.
I am wasted. why is my car handle sticky? Damn some one made a sunday on my car! Well at least it smells good.
by honeyboy February 5, 2010
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