When its real late and you've reached the point of sleep but you can't seem to go to bed because you're too horny. Much like 'slorny' this happens at night time rather than in the morning.
Joe was very heepy because he was up late chatting online with his girlfriend.
by Manxa March 05, 2009
Creepy + Horny = Heepy
Soccer Faggots Are Very Heepy
by Soccer Fairy August 07, 2006