Sketra also spelt 5K37RA is a type of forum community poster that consistently but unwillingly posts comments that make them look like a white trash bogan.
Usually a Sketra is female, but it is quite possible that the sketra is a male pretending to be a female.
Sketra's often attempt to post pictures of them selves in an attempt to be a "model" but fail because they arnt very pretty or attractive in any sense.
OMG did you see that Sketra that guy posted up about his Commodore? It was so Sketra it had Chevy badges on it.