My car is gregged, My mechanic is trying to fix it.
That guy was beat up badly, His face was Gregged pretty badly.
My date was Gregged, She was a he-she...
To load an inappropriate picture of old Greg (From the Mighty Boosh) onto someones computer screen whilst they have left the computer unattened (or are distracted)how ever this may result in them greging you back.
Example 2 # (person being gregged) "oh wtf is THISSSS!!"
(the Greger) "you been Gregged mate"
Go on this link if you want a perfect example of being Gregged: