Jeffed is the act of being blown off by someone who is so sure they love you that they know you'll be there tomorrow, no matter how inconsiderate the act, because they're well worth it.
Jeffed is "I'll be backin a few minutes." Player logs from audio and messenger after 2 hours because their computer overheats while they're peacefully sleeping and you're waiting.
To receive a number of sucker punches, punches to the head, head butted, etc.
Also could be defined as being beat or hit with a weapon such as a night stick or anything blunt.
An extreme level of drunkenness characterized by an inability to stand upright, often resembling a T-Rex. One version of the drunkenness scale is as follows: buzzed, drunk, wasted, f'd up, blackout, Jeffed.