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a. to be polite and to respond timely to invitations because you shouldn't be a douchebag and say MAYBE to an invitation because you know people have to fucking cook for a certain amount of people!!!

b. to talk to other guests at a dinner party and not avoiding eye contact and acutally listening to the hostess when she says "please sit down"

c. not being a major douchebag
"hey, can you sit down and have some common courtesy for your hostess?"
by kimmywong December 31, 2005
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That new, amazing album by pop punk/metalcore wondergroup A Day To Remember.
Have you heard the new ADTR album?
What, Common Courtesy, it's f**king amazing!
by Welchy720 October 09, 2013
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Telling someone when you unplug there phone to plug yours in.
I thought my phone was charging this whole time but Paige unplugged it, she has no common courtesy.
by Truc4 November 19, 2017
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