Those who earn in excess of 50k a year, yet live in caravans and don't pay any taxes.

Thieving b*stards who when they are not thieving, spend their time indulging in one or more of the following: (1) shopping in Argos for giant-sized earrings/sovereign rings/gold chains that are too big for Mr T; (2) hanging around the post office on giro day; (3) burning out cars; (4)using the word 'innit' a lot and generally talking in a bumpkin slang; (5) smoking fags; (6) watching Trisha; (7) drinking alcopops and (8) offending everyone with their fake designer threads from the market. Regarding point (8)- if a pikey's clothes really ARE designer, you can be sure they are stolen goods. The most easy way of identifying a pikey is by their name - for example, if you encounter someone called Dean/Jordan/Chardonnay/Maddison/Tyler/Elvis/Tiffany/Jade/Tyson/Kylie etc you can guarantee they descend from pikey stock. They also think McDonalds is a high-class culinary experience. Losers.

irish gypsies who will steal anything and are mostly violent

Derogatory name for travelling folk such as Romany Gypsies, often used as an abusive term that is now frequently (and mistakenly) used to describe council estate scumbags who dress badly in cheap clothes and can be seen hanging around all over this country. They are people who have, for the last 800 to 1000 years, been forcibly chased out of every country in Europe, had their children taken away, been sterilised (that was a state sponsored initiative by the Swedish government up until 1974) and lets not forget the 3.5 million that were exterminated by Nazi Germany in the Holocaust among many other pleasant things Europe has done. Originally they were received in Europe with welcoming arms, the were hard working and had exotic items to trade but then landlords wanted them removed as they undermined their authority, this is when the first anti-gypsy laws came in and ever since then its has the states position to vilify and persecute them. Still today they are one of the most underrepresented and racially abused ethnic groups.
Now the descendants are highly suspicious of settled people are treat them like shit, I suffered from this working in a pub they didn’t like to leave and if you forced the issue they would smash the place up. But then as I am of Pikey origins on my fathers side i could undestand their resentment, my fathers family were forced to settle. I never knew any different from you and i have worked hard until i went to uni (which I am paying for). Some of them...

Thievin smelly bastards.

pikeys are irish gipsies that like to steal, fight and do other mainly illegal things... they speak a completly different language and always smell ! they ae bloody hard and should be steered clear of !

The average person in Ireland refers to them as knackers these days. They were previously known as tinkers.
They are inbred due to a mistrust of settled people.
They are always looking for a way to make easy money, the same as every other common thug.
In years past that would have meant stealing lead or tarp.
These days it usually means robbing the elderly or selling poor quality drugs.