There are many definitions of greebo, I will run through all of them, I am not saying which ones are nessesarily right or wrong, thats for you too decide:

Greebo's are into any style of music from rock 'n' roll to metal to indie. They are generally found in Cardiff, Leeds and St Albans. The term greebo is used all over to describe anyone from an emo to a goth to an indie kid. By what I've heard from most people, they dont exist in Ireland or Scotland, only in England and Wales. Please correct me if I'm wrong.

The term 'Greebo' originally stood for 'Greasy Boy' as greebo's used to be associated with not washing there hair often. Greebos generally have long, unbrushed hair which is un-dyed and un-gelled.

Greebo boys wear baggy clothes such as jeans and combat trousers. Sometimes a checkered or studded belt is added. A 'Greebo Chain' is the most recognisable thing about a greebo. A Greebo Chain is a chain worn from one belt loop on the side of a pair of jeans to another belt loop. It is let too hang down as low as possible. These are often used to keep there wallets being stolen by Chavs by attatching it too the wallet. A skate brand t-shirt - baggy - and any shoes from skate shoes to nike too DM boots. Sometimes beanie hat too.

True greebo girls dress similarly too the boys. They wear baggy jeans and similar shoes. Girls often wear Vans shoes, not the slip ons on skate shoes, just the normal trainers. They wear boys t-shirts because they are more baggy.

The ...

n. a beer that is made in ireland. a red and full beer. delicious

A man from history that wrote plays pomes and other things that you can barly understand and half the words sound made up.

C.O.G.-n. short for Cool Old Guy. originating from Ireland. A guy working at a community college who hangs out with awesome chicks that gives free hugs.

1. n. a term used for a kid who is really white trash (originates in Ireland) 2. v. the act of being white trash 3. n. a kid who acts like a pussy on xbox live 4. n. a kid who makes fun of kids on xbox and when they retaliate, a childe would leave the party and start crying

A bovenizer is a unit of measurement used by the majority of irish people worldwide, although when asked about it by a non-Irish person (a stadín), they will most often deny its existence.

The word bovenizer stems from a figure in Irish Myths and legend: Fálor Bovenizer. Fálor was a giant of a man who travelled with the great Irish hero : An mac tira. On one of their travels they came upon a large tear in the earths suface.
Bovenizer stretcheed across the span and allowed An mac tira's company to cross by walking along his back. The width of the span became a mesurement used by the people of Ireland.

This is an extreme insult, deriving from Northern Ireland, hence the spelling to emulate local dialects. It is in common use as a put down. It is accompanied by two or more fingers held together, as if inserting into an orifice, and waved under the victim's nose. It reflects the harshness and vulgarity common to N. Irish conversation.