People that hang around bus shelters, shelters on the seafront. Have sex in the public toilets and then get pissed on cheap cider or "fosters m8".
They then talk about how there mums other sons brothers cousin has a nova with 1000bhp and about 10 turbo chargers on it. When they get bored they mindlessly call a few people wankers and twats for no reason, and then go up the coastal path to smoke weed out of sight of the "pigs".
Chav 1: "that is a fuckin savage car m8, nova m8, how fast does it do about 300mph?
Chav 2: "Oi m8 look at that twat over there......YOU FUCKING WANKER M8" (randomly and pointlessly shouts abouse at passers by who have done nothing wrong)
Chav 3: "M8 BIT OF GRASS GOTA SPIN ITTT IN MY NOVA MM888888!!"