A pathetic mix between "emo" and a "hipster". They all wear a shitty red flannel, bomber jacket, boots and black jeans. Most are bisexual and don't know their fucking genders. Complain that their life is shit and want to kill themselves even though their life is fine. Most of them hang around a skatepark and smoke weed.

Someone who wears baggy clothes and big shoes. Usually a skater that pushes mongo.

Meaning someone who is disgusting and displeasing. Can be used in the adjective form of 'grebby'.

I was sat in my baggy joggers having kfc and wkd for breakfast - I am a greb.

A Greb is classed as an idiot or a silly person that would do something inappropriate or rude. This word should not be used offensively ,it’s a jokey slang word.

Greb is an adjective. It describes someone who is a waster or doesn't look after themselves. For example someone who takes lots of drugs, doesn't work and doesn't take on any responsibilities. (Basically just a crack head)

Around the city of Derby (UK) at least, the phrase "Greb" refers to someone who dresses in a mixture of indie and emo styles, such as a military jacket and high top converse, they listen to a mix of that music, and are also most likely known around the social ecosystem as stoners, and to be quite defensive towards other groups.