Top Definition
How you sound cute and vaguely random while talking to someone about something that's coincidental. Cowinkydinkyful = coincidental.
John: So we ate some hamburgers for dinner.
Chrissy: How cowinkydinkyful, so did we!
#coincidence #cowinkydinky #coincidental #purposefully #intended
by Tinygirlmcsexyface March 10, 2012
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