You can get rid of hair in your buttcrack. The best way to do this is to use a clothespin, rubber band, or even dental floss to pull the hair out. You can also try using baby oil on the area and then wiping it with toilet paper-the oil will cause the hairs to come out more easily.
If you want to get rid of hair in the buttcrack there are a number of ways that you can go about doing this. The first thing that you need to do is make sure that you are using a new razor or tweezers every time that you shave around your buttcrack area. This will prevent infections from happening and will ensure that the hair grows back less frequently.
If this doesn't work for you, then try waxing. This is a fairly simple process and will ensure that your buttcrack area stays hair-free for weeks at a time. It does hurt, so be prepared to take some Advil an hour before you get it done!
If this still doesn't help, then you can consider laser treatment. This is the most expensive solution to your problem and it is more than likely that you will have to visit a specialist with expertise in this area.
One last tip that I can give you is to try shaving against hair growth with a new razor. This will cause the hair to grow back less frequently and you will be able to go longer between shaves.
Otherwise, try using a combination of the above techniques and you will eventually get rid of all of the hair in your buttcrack area.