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1.
A sincere statement of interest, excitement, or encouragment that is mistakenly interpreted as sarcasm due to unintentional vocal intonation and/or eyebrow movement.

Antonym: Back-handyism.
Handyisms include (but are not limited to) one-word reactions such as: "Seriously?" "Really?" and "Definitely."
by jeniflower72 April 21, 2009