1 definition by Suz! :)

Top Definition
definitely, totally, absolutely, with certainty (adv.)
We should deffies go to the movies later.

Note: In most situations, deffies can be substituted for totes or probs to add an extra sprinkle of awesome sauce to your sentences.

Also note that deffies is not a derogatory term for a group of multiple people with extremely poor hearing.
by Suz! :) November 09, 2010
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