The Callahan Theory is performed when a person completes all of his/her homework on the absolute last day of the semester. No homework is done through out the course until the last day. Then, he/she hands all of it in to the teacher all at once. To complete the theory, you must still achieve a 3.5 GPA.
Matt - "Hey Pat, have you done your homework tonight?"
Pat - "No, we're only two weeks into the course, I follow the Callahan Theory."
Matt - "What's that?"
Pat - "It's when I do all of my homework on the last day of the semester, and still get an A!"
Pat - "No, we're only two weeks into the course, I follow the Callahan Theory."
Matt - "What's that?"
Pat - "It's when I do all of my homework on the last day of the semester, and still get an A!"
by MickWhop July 23, 2012
Get the Callahan Theory mug.A kind of demon summoned by Sydney Sage, a witch in the Bloodlines series by Richelle Mead.
It looks like a palm sized chinese dragon and is able to move around, but is made of quartz. It can be turned back into a rock by the caster of the spell and back again. It bonds to the first person it sees, which is usually the caster. If more than one person is present however, it bonds with both of them.
It is used to warn those it's bonded to of danger and by screeching but also screeches when it's hungry.
The spell lasts for a year and a day after the cast is made.
It looks like a palm sized chinese dragon and is able to move around, but is made of quartz. It can be turned back into a rock by the caster of the spell and back again. It bonds to the first person it sees, which is usually the caster. If more than one person is present however, it bonds with both of them.
It is used to warn those it's bonded to of danger and by screeching but also screeches when it's hungry.
The spell lasts for a year and a day after the cast is made.
by Mrs Ivashkov May 18, 2013
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It's an expression to say you've got to do something. To do your duty or when something reminds you to do your duty.
An simple example of this is:
When your you're chilling on a sofa and suddenly your baby starts crying and you gotta check it out, then you might say: Oops! Duty calls!!
When your you're chilling on a sofa and suddenly your baby starts crying and you gotta check it out, then you might say: Oops! Duty calls!!
by Luiz Fernando January 29, 2009
Get the Duty calls mug.Callista comes from the Greek for "most beautiful (fem.)" (καλλίστη - kalliste). This name is a lesser known name for girls.
Callista mostly means the most beautiful among the women. Center of attention because of its itelligence and beautifulness of body and soul, inside and out. Callista also means a person who is loved and tend to be surrounded by people who adore and admire her.
Callista mostly means the most beautiful among the women. Center of attention because of its itelligence and beautifulness of body and soul, inside and out. Callista also means a person who is loved and tend to be surrounded by people who adore and admire her.
by andrewMS1230 August 28, 2009
Get the Callista mug.secret lingo to write on someones property "cock and balls" without an adult realizing what it says.
The man wrote Bock and Calls on his friends binder in photography. When the teacher looked at it, he had no idea what it meant, yet the kids knew.
by vols123456 November 11, 2009
Get the Bock and Calls mug.The formation of calluses on your hands and fingers from hitting a beat on everything you come in contact with.
Some random black dude named Carl: Ayo, hit that Weezy beat real quick!
Kid with the calluseats: Nah gwodie, do you not see these calluseats?
Kid with the calluseats: Nah gwodie, do you not see these calluseats?
by IcyLikeACupcake January 12, 2010
Get the Calluseats mug.A beautiful female who is strong and empowered, she is smart and trustworthy. The definition of beauty. Makes any room light up just from her smile. She is simple.
You should date a callisa
by Beautifulwind March 13, 2017
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