I looked for the term "enjoy" in the SAP Urban Dictionary and came up dry.
https://wiki.scn.sap.com/wiki/display/HOME/SCN+Urban+Dictionary
Needless to say, this gap must be filled. Please provide any early recollections of said term, and relevant references to expand our mutual encyclopedic knowledge.
I found this in my SAP TechEd T Shirt collection (vintage 1999):
I have a suspicion / memory the 1999 would be the first year; for example, SAP documentation ..