...I've a horse outside

Supposedly, the fact that I drive a Honda Civic makes me the type of girl who wears Nike Air.  There's an Irish word for it but it's slipping my mind. The fact that my car is black makes the stereotype even more intense... Not sure why this is or exactly what it means, but I have a feeling it's somehow correlated to a song we hear literally EVERY time we go to the pubs. It's called "Horse outside" and is by a group called The Rubberbandits. Listen closely to the lyrics (if you can understand them). Warning: The music video is really weird!!