Top Definition
The epiphany of fucktardedness and sheer stupidity, a jack diddly dipshit is someone who doesn't know what's going on 99% of the time and whom most things they do aren't bad, problematic or assholish. Is just pure, good, innocent... Fucking stupidity
Jimmy: **sends whole group on wild goosefhase for something that doesn't really exist.**
Jimmy:**gets back to table**
Everyone: jack diddly dipshit
by Jessikernville May 20, 2014

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