A chav is a larger form of a Squat; possibly a close relative. They live in various parts of England, particularly London and Manchester. They are known for swearing, smoking cigarettes, and a sixth sense that enables them to detect expensive technology on tourists (which they will steal). They are also known for robbing apartments while the inhabitants are inside and conscious.
Chavs typically travel in packs; they are deadly in this state. When separated from his pack, a chav will lose his powers and turn tail.
Chavs cannot be defeated in regular combat; your best hope at escape is to buy cigarettes for them.