Definitions by Rakeri
legit
short for legitimate. In the context of video games such as Diablo, that which is described by the adjective has been obtained without cheating or hacking.
clean
In the context of games in which virtual ownership of virtual items is possible, clean refers to an item which is undamaged or unused. In the context of Diablo 2 for example, it means that the item has not been socketed or personalized. (in D2, when used in conjunction with "socket" it means that the socket has not been encrusted with a gem or rune or jewel)