Male or female totty whose poshness is an essential part of the appeal e.g. well educated; mellifluous voice; charming classy manners; sophisticated conversation; expensive clothes; trendy address, etc.
"I've always been a push over for a bit of posh totty and couldn't resist the charms of Sebastian, the concert pianist. That silky voice and those smooth hands had my nether regions all a quiver in moments!"
The line of titty owners that stand behind Clarkson, Hammond and May while doing their piece to the camera during filming an episode of the eponymous TV show.
"Just look at that pieve of top gear totty just behind Clarksons's fatstupid face".