The term used when you call someone and they hit the ignore button on their cell phone, to avoid speaking with you.

The term originates with Nextels because they have a side button to do that.

You know you've been side buttoned if it rings for a shorter time than usual before going to voicemail.
Mark: Oh no! Greg is calling
Jessica: Don't answer it!
Mark: Good idea, I'll side button him.

Greg: What the fuck, TWO rings? Fuck Mark for side buttoning me.
by Li Hibbs August 22, 2005
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The action of ignoring an incoming call by the use of the side button on one's cellular phone.
"Dude, I totally side buttoned this chick last night. She must have called me five times."

by Taylor H. March 2, 2008
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To ignore someone. Refering to the side button of a cell phone.
oh, that was just my ex. I side buttoned her.
by Postal1134 May 12, 2006
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v. To snub someone via cell phone by pushing the IGNORE button rather than answering the call.
"Nah, it was just my ex. I side-buttoned him."
by HeyKaren December 8, 2005
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The act of ignoring a call on a cell phone by pressing the side button to silence the ringer.
Alex called, and I didn't feel like talking, so i decided to side-button him
by Deepy April 14, 2006
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