A snobbish term used by stupid, ignorant people for working class members of society. There are many other derogatory terms for them; grunt, bitch, little people, a whole bunch of names. A peon is someone with a crappy job, the menial jobs that no one wants. A "peon" may not always constitute a person with a low end job, but rather just someone who's at the bottom of their line of work. Only ass holes use this term.
Bridezilla: "Daddy! I need someone to sweep this floor! Who's he?"
best way to add to all of these besides lower social class rank than you, take it back to the elizabethan era.. in a arena where shakespere would put on a show the lower class would be in the pee-on section the upper class would never leave their seat except to hang over the balcony and pee-on or barf or fart or whatever on the little townspeople ( i don't think this is historically accurate but lets have an imagination shall we>?>?!)
"brutus let these little peons have a taste of thy wonderful wine that thou hast made thee drunk as a horse.."