A day in winter when a large amount of snow falls in a short amount of time making travel difficult. Schools close for this reason. Usually enjoyed unless you are older in which case you have to shovel. Has become increasingly common in the Northern Midwest and New England over the past few years.
Guy 1: Hey did you see the weather forecast?
Guy 2: Yea, 15 inches of snow tomorrow.
Guy 1: You know what that means...
Guy 2: SNOWDAY!!!

Teacher: Hmm chance of snow for next week.
Student: it will be a snow day.
Teacher: No it wont
Student: Yes it will we live in Wisconsin.
by Distance4life February 11, 2010
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Term for when you are so hung over and drunk the night before work or school you just say "fuck it" and don't show up.
It's 3 am...we need to head home...

Dude, tomorrow is a snow day for me...I aint going to work...

Lauren was doing shots at 4 am and knew Thursday was going to be a snow day!
by B. Hanback January 17, 2009
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I watched Snow Day last night and it was the stupidest movie ever. Chevy Chase was not funny.
by Alec Luther January 04, 2004
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what you don't get in Tempe AZ in less some miracle of god happens and it snows.
girl 1; I hope it snows so we can have a snow day!!
Girl 2; shut up u idiot. we don't get snow days we get 'oh damn the air conditioner broke we're screwed' days
by Lexx55 August 01, 2009
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1) Potentially the best use of snow since the invention of a snowball.

2) An excuse for lazy teachers, bus drivers, and of course the parents of students who are overworried about poor driving conditions and the saftey of their children.
Yes! A snow day. I think I'll sit inside making definitions of epic things on UD.
by bunstofuns February 23, 2010
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Calling a personal snow day, despite clear weather and no snow on the ground, on account of being lazy. Often used in college after a night of drinking, one declares a snow day followed by skipping all classes/meetings to play video games. Snow days may even be called for summer classes. Originating from Western Illinois University, Washington Hall 7.
It's another snow day, I'm not doing a damn thing all day.

Nah, I didn't go to class, I called it a snow day.
by Dave710 January 21, 2005
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The act of waking your partner up by screaming, "SNOW DAY!" and proceed by ejaculating in his/her face.
Richard: "Wake up Jane, It's a SNOW DAY."
Jane: "Are you serious?!"
Richard: "It is now!" *jizzes on face*

Bob: "Dude, I gave that chick I banged last night a snow day this morning! Then she made me breakfast."
Dylan: "You've got yourself a real winner."
by dizwhore September 20, 2015
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