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The process of using your thumbs to message someone via text, IM, etc.

Much like texting someone but the action can be included in activities involving internet on a computer and a full sized keyboard.
I sent you a message on the computer last night but yuo logged off without reading it so i thumb-buttoned you instead.

John was cyber-thumb-buttoning Heather last night. He told me they thumb-buttioned for hours.
by Yosemishu March 08, 2009
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