Top Definition
A state of giddiness resembling being high; a combination of the words 'happy' and 'huffing'.
Sandra wouldn't stop laughing last night. She was so haffy she was laughing at nothing.
by mustgofaster August 07, 2010
Horny As Fuck For You
Tell someone: I am haffy right now!
by HaffyNow May 31, 2016
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