mef-derived from the insult meffa or indeed mephloid.
Someone of limited inteligence/extreme clumsyness.
or indeed someone whose limited spacial awareness and general geekiness makes them satnd out from the crowd of geeks
derived from the word GIMP- as in Bring out the GIMP!
Relating to something as GIMPTASTIC means that only a true GIMP would think that item/action is cool and worthy of belonging to/being performed by a GIMP!
MAN,THAT CAR IS GIMPTASTIC-meaning only a gimp would allow himself to be seen in such a vehicle.
INDEED, GIMPTASTIC!- meaning an action worthy of a gimp thus implying the person is indeed a gimp