Heiti is a word used to describe a form of kenning, particularly with reference to a by-name for one of the Norse or Anglo-Saxon deities. An obvious example of this is Victory-father for Odin, the god of battles.
Example Usage of Heiti
ilionblaze: New email from Sara posted on the forum. #Heiti #ditchthetech
chixor: Still no word from Matt. Now I'm getting nervous. #Heiti #ditchthetech #dollhouse
viewingfigures: @ilionblaze #Heiti. Oh aye. Spooky. Mind you, same year as "It's Raining Men" by The Weather Girls. So there's always good.