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2.
To let your friends date a girl and then move in for the sloppy seconds after they break up, after the 3rd time it's considered an extreme "Dennee"
He is totally going Dennee on that girl I used to pound.
by John Spears October 26, 2010
 
1.
To be completely illiterate, or have no understanding of any language what so ever
If you spelled 'our', as 'are' is a minor example of being a dennee.
by nknknknkr May 14, 2012