The security guys, who’d checked their Service ID with what Min had interpreted as awe and envy. Louisa thought it more the look state kids aimed at their public school counterparts: the age-old enmity of yobs v toffs. A long-time yob herself, she savored the irony.
— Dead Lions (Mick Herron), Loc. 720–2
As nouns the difference between yobs and toffs is that yobs is (pejorative, chiefly, British, Australia, NZ, slang) A person who engages in antisocial behavior/behaviour and/or drunkenness while toffs is (obsolete) An elegantly dressed person.