jeff up
to screw up really really bad
make sure you don’t jeff up.
wake up jeff
Line from a Wiigles song, taken in to the Australian venacular said to someone doing or who has just done something REALLY stupid
Eric (Saying to Dan, after Dan just put the milk in the pantry and the bread in the fridge) : Wake up Jeff
Shut UP Jeff
to tell someone to shut up with the name Jeff, after they are negative
Shut UP Jeff your such a negative nancy