A male with a large mass of hair usually drug dealers or gangsters and have a lot of street credibility a ket wig can be straight, curly or wavy as long as it is below the jaw bone and no higher
Someone, normally a chav,who hasn't had a hair cut and instead has grown a disgusting mass of hair. The name comes from the idea that the money saved from not getting a hair cut can instead be spent in there view wisely, on ketamine
A really fucking bad hair cut, or when a male doesn't cut their hair for ages as they are working on their 'ket wig'. would probably be similar to a person who was on ketamine. they look really fucking stupid.
"How's your ket wig coming along man?"
"Good bro, been about 3 months without a trim."
"Fucking disgusting . I love it."