Basically a semi-greb. Someone who is neither here nor there. Half way between a greb and a chav.
Nah she aint a greb, she's a greblin.
9π 4π
A greblin is someone who has a greb style and also is very ugly, this makes them look like a gremlin. the word greblin associated from the two words mixing together which formed greblin a new term to tell someone they are unfashionable and have a hideous appearance.
That guy/girl over there looks like a greblin!
The mix of an absolute greb that looks so hideous it may aswell also be a gremlin which creates the mix of a greb and a gremlin therefore itβs called greblin.
Your an absolute greblin you mate