Greb

Someone that smells so bad that even the cleaning products run away.

Oh that guy is a proper greb

Boyle

A Boyle is an egg looking human being, with a bald head.

Oi Boyle! Nice egg head

Jack

A Jack is a complete FUCKBOY
They say they like someone, but they really dont.
They flirt with with every lass/lad they get into contact with.

STAY AWAY FROM A JACK at all costs.

Ew, that Jack is a proper fuckboy