Someone of humble origins, new to the middle class who makes a big deal about food shopping at Waitrose or M&S. Such types will lose no opportunity to let you know where that "delightful couscous salad" came from and will frequently carry other items in a Waitrose/M&S bag to drive the point home. Normally the dregs of society who get their news from The Daily Mail, they will often scorn Aldi/Lidl shoppers and invite others to share their disgustinginsecurity. Regard themselves as "posh", a word and a concept that is alien to anyone with breeding.
That Chavrose was around again this morning, banging on about who came to her dinner party.
Oh God, that awful Chavrose is coming over. I've never met anyone so common.
I hold doors open for ladies and am therefore chivalrous. You, you "souped-up" Citroen Saxo driver, you wearer of faux Burberry, you drinker of crap cider, you denizen of a sink estate, you comon oaf, are chavalrous. Begone!
People with the last name Chavarriaga are rare but if you do find one then keep them and try to get close with them because they will always make you laugh and be nice. They can be a pain in the ass but will always make you happy.