The term for a close friend whom you used to hang out with often, but now see only rarely such as at birthday parties for mutual friends and other special social events. Often these encounters are awkward as mutual friends bring you together obligatorially, not voluntarily.
Friend 1: "Have you seen or spoken to Bob at all?"

Friend 2: "No, I haven't. We used to hang all the time, but kind of had a falling out and we don't talk all that much any more. He's just a calendar friend."
by Epinionator September 27, 2010
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When a kid is so cute that all their pictures look calendar worthy.
Yeah. That kid's adorable ... he's calendar cute!
by NCdubmixer February 5, 2011
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Out of your league women that only talk to you when they need favors from you.
"Why do you bother drooling over her? She's just a calendar girl and you know it."
by D-Struct August 1, 2005
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The calendar for people who can't survive No Nut November

Jump Bones January
Four Finger February
Masturbation March

Anal April

Mating May

Jack off June
Juicy July

Asshole August
Sex September
Oral October
Nut November
Dick December
"Liah it's No Nut November :("
"Not according to The Cock Calendar it isn't ;))"
"Cock calendar?"
"A glorious calendar made by @bri_loves_badgers and @_stonecoldcrazy_ on instagram"
by ClinkClinkBitch November 2, 2019
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The way in which some Christian churches envision and celebrate the 365/366 day year. Sunday begins the week, every week. Emphasis is given to Christian holy days rather than secular holidays

The Christian Calendar begins with the first Sunday in Advent (the four weeks before Christmas) and moves through Christmas, Epiphany, Ordinary Time, Lent (the 40 days, other than Sundays, before Easter), Easter, and Ordinary Time. Other special days within the Christian Calendar celebrate and draw attention to specific events in the life of Jesus Christ and/or the Church over the millenia. These include: Baptism of the Lord, Transfiguration of the Lord, Ash Wednesday, Palm Sunday, Maundy Thursday, Good Friday/Holy Friday, Ascension of the Lord, Day of Pentecost, Trinity Sunday, All Saints' Day, and Christ the King.
On the Christian Calendar Easter is a season instead of just one day.
by scubarev April 21, 2006
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The Calendar was created for a new more Heavener American Kingdom on earth. Used exclusively on the "Oklahoma Blackberry Plantation." The year 1999 was flipped to create 1666. This secret calendar was synchronized and moved forward from that year. In the peaceful Heavener Plantation zone, it is the year 1688, while on this lawless earth it is 2022. In eleven years it will be 2033 on earth, while in the Plantation zone will mark the turn of another century at 1699. Another chosen one will show up in that year.
The creation of the top-secret Plantation calendar in 1999 was not declassified until 2017.
by Spiritual-Master March 19, 2022
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The standard calendar used just about everywhere in the world today. Your wall calendar almost certainly shows dates in the Gregorian calendar.
This program converts dates from the Jewish calendar to the Gregorian calendar.
by Juuitchan September 8, 2005
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