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1.
When someone deliberately rejects your phone call upon calling their cellular phone, In reference to the 'Clear Button' on most cellular phones that is used to reject phone calls and delete text messages
I was trying to reach my friend on his phone but as I was calling him, I heard the third ring being interrupted by silence and I knew he C buttoned me.
by BulletXCharm October 21, 2010
 
2.
A term used for those who play Smash Bros. Melee and use the c-stick to perform smash attacks as opposed to holding down a direction while pressing a. This is looked down upon by some players, however this strategy is commonly used in proffesional play.
Faggot: Hey! Quit using c buttons!!!!
Smash player: Shut up faggot.
by twinfish November 30, 2005
 
3.
The "Clear" button on a cell phone. It is used when you dont want to talk to the person calling you.
"This idiot is calling me! Ill unleash the power of the C-Button upon him."
by Timmy W August 29, 2005
 
4.
The "Clear" button on a cell phone. It is used when you dont want to talk to the person calling you.
"This idiot is calling me! I shall unleash the power of the
c button upon him."
by Timmy W September 13, 2005