Pajama bottom pants. These pants are ideally worn during the day. Usually Day-Pants are worn on days that are considered lazy. Also Day-Pants are the pants you would wear after a good nights rest but decided not to take them off.
looks like it's going to be a lazy day. It seems like a good day for Day-Pants.
by awilkie1991 December 03, 2010
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jeans that fit perfectly, on the second day of use; first day pants are a bit too tight, but second day pants feel great.
It feels so good to put on second day pants and not worry about a muffin top.
by damngrlhowthehell January 21, 2008
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In a college environment, a student's wardrobe is governed chiefly by the "5-day pants rule" (FDPR). The FDPR states that any student may wear the same pair of pants no longer than 5 consecutive days, after which they must change pants and shower. Most new college kids perceive this as excessive, and are new to the idea of not showering every day, but Sophomores and beyond know the need for this rule.
"Hey man, 5-day pants rule, and they've been rank since you spilled milk on day 3."

"Ahh, you're right. Better go change up."
by Justin Briggs 1984 October 22, 2006
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A National holiday in which the first Friday of May you wear no pants or shorts over your underwear.
Girl: Why did dad go to the office today without his pants on?
Brother: It's the first Friday of May you retard, No Pants Day.
by /NickSavage May 06, 2010
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A national holiday usually celebrated in australia on May 5th in which you wear no pants or shorts over your underwear.
I was pimping down the streets all nonchalant on May 5th when i saw someone with no pants and realized it was "no pants day".
by MonkeyPimp March 18, 2006
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1) a day to stay in doors and relax in one's pajamas. 2) 24-hour period with no responsibility.
We stayed at home and watched movies all day...it was a wonderful no-pants day.
by Cycleman January 04, 2014
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On May 10th, it is national Eat Pant Day! This day was inspired by Soothouse. On this day, we will patiently eat each others pant as a nation.
Hey, John. It's eat pant day!
Thanks for reminding me Billy!
by Ya Like Plasma? May 10, 2018
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