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1.
When you dont go to church Sunday and sleep till noon. Then Sunday night you can't fall asleep till 2-3:30 and arrive to school on Monday morning tired and looking like crap.
Boy 1: Woah, you look...tired
Girl 1: I know thats the nice way of saying you look like crap!
Boy 1: What happened?
Girl 1: I have Sunday Syndrome..
Boy 1: What??
Girl 1: I stayed up all of Saturday night at a party, so Sunday I didn't go with my family to church and slept till noon. I fell asleep at 3:00AM this morning and woke up at 5:30AM!
Boy 1: Ouch
Girl 1:Zzz zzz zzz
by KonGluey January 16, 2011
 
2.
When you can't stand Sunday no matter what you do it just depresses or bores the hell out of you.
you don't like the shops being closed completely or open for shorter times and believe everyone should go to work just like any other day!

Why should non-religious folk be forced into "the day of rest"?????
person 1; Whats up with you?
person 2; Its Sunday!!!
person 1; and?
person 2; Everything is shut, people go church and stuff, I just can't stand Sunday's, I guess I have some kind of syndrome, Sunday Syndrome!
by MacSeoin September 29, 2013