I guess this is your first tattoo? What I would suggest is look around on the internet for tattoo artists in your area, find one you like the look of and go in for a consultation.
There is good chance the tattoo artist with be able to design the tattoo for you or recommend an artist who can. They will probably want to know:
- The size and location of the tattoo.
- If you would like a full color, monochrome or black and grey tattoo.
- The stlye you would like. You said bad ass and trashy which is a good start but the artist wont know what you consider to be bad ass and trashy. It will help the artist a lot if you can go to your consultation with a picture of the blooper, and some style references of what you would like, ie do you mean trashy like NY 1970s train graffiti or an Iron Maiden album cover?
- It will also help the artist a lot if you can tell them your budget.