I really can't stand my dad!
Why can't you stand your dad?
Because he's literally a dick!
If you're not getting along with your dad, the best thing to do is talk through the family issue your having. Ignoring issues causes problems to exacerbate.
Then what would you do? Tell my dad that it's not nice to talk trash shits?
Sure if that is how you really feel. You need to try to keep the peace in your family, this situation could only be temporary.