A day once a week that true epic gamers dress up like the popular Undertale character Sans.
"did you hear? Sans Day is this thursday"
by StibWoods November 9, 2019
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13th of April is national suck Sans dick day so if you see him and you are hot suck his dick.
Oh today is 13th of April, it's National suck Sans dick day so that mean I will suck his dick!
by Suck_a_cock3000 April 12, 2019
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GitHub.com or other primary source of cloud based source control is down, rendering a development staff unable to submit code updates.
"Where is our dev staff going?"

"We can't push or pull code today, it's a San Francisco snow day."
by gina the hyena April 20, 2016
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