A person of snob like nature with a narrow minded approach to everthing other than material stuff, some body hu is a posh twat is often dislicked and bitched about heavily due to their superior attitude to people they consider lower than them, they are often found in eastern areas of cheashire UK and are most concentrated in areas such as alderly edge and wilmslow. Posh Twats are in many cases the children of people who have worked hard for their money and thus havnt worked a day in their life, but some how have a BMW/auto-motive form of transport of higher value than my 1.2 corsa which i share with my gran!

Posh Twats are a minority, many americans and other members of unfree slave populations beleive (because of their stupidness) that all English people are posh twats, this in fact is itself taking a posh twat attitude and they shoud all roll over and die!!!
that howard guy is such a posh twat, if he sez any thing about my 56k internet connection agen im gona rip out his eyes and skull fuk him
by mrseano May 21, 2005
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Basically, and with some variations..
A posh twat is an incredibly blonde girl, who, though dislike by most, thinks everyone wants to be them. Don't be fooled though, their only friends are each other. Role models include The Plastics and Paris Hilton. Posh Twats exhibit behavior such as pretending to be bisexual so people pay attention to them, continually repeating how they "dont care" what you think of them, and taking myspace pictures with weird pouty expressions.
Posh Twat: OMG STOP STARING AT MEEEEEEEEEEE
Kid 1: ...I was looking at my girlfriend behind you.
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Posh Twat: And like, I was so upset, because like the car they wanted to buy me was like, purple instead of like, white. I need my girlfriend to come make me feel better. :(
by LeleNanaKiki October 14, 2007
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A person, generally a guy, who lives in Hampstead or Highgate and thinks they are a badaman, but really, are just a posh twat.
"Skeen bruv, im jammin wiv da main-dogs l8r"
"Yeh...in Hampstead?"
"Course bruv."
"Wow..you badaman."
"Init."
...What a posh twat.
by molak1 September 25, 2011
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cambridge university has a particular slant on a posh twat. The graduates of cambridge tend to be in love with their own success and are secretly jealous of anyone even vaguely more successful than them. For example any other cambridge graduate. The most successful moment for these people was getting into the college, graduating and then spending the rest of their lives "I went to cambridge", getting married in cambridge and marrying other cambridge graduates and then desperately spending their lives clawing onto their pocket of success and having to fund their superiority and status anxiety.
cambridge posh twats "I can't go to my cambridge reunion because I haven't achieved anything and no, a husband, children, successful career and my own home do not count as any palpable success, please don't call me a cambridge posh twat you chav".
by sinic June 19, 2010
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A (usually white) person of affluence from the south of England who is so tragically entrenched in the erroneous belief of their own superiority that they are incapable of expressing respect for their peers.
That person is turning their nose up at me for no apparent reason; they must be one of those posh southern twats.
by T-Reason April 29, 2018
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