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When one's fingers do not do as they are wanted to do. The fingers will mess up and aggravate the person attached to them.
Person A:
Dude! Do you wanna see my togue piercing?

Person B:
A togue is a lake trout, and I'm pretty sure you didn't get that pierced. Did you mean to say "tongue?"

Person A:

Yeah, I meant tongue. I had a fingerfail.
by HolyRollerWithASpaceship February 10, 2010
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