Using the silent treatment, or telling someone they are worthless. Instead of cursing or using violence, I try to find more "existential" reasons to degrade them.
For example, last year, I told my roommates that they didn't deserve to be loved for reasons A, B and C, thus they should drop out of school, kill themselves, etc.
I definitely think this stems from introverted Feeling and extraverted Intuition.
I naturally evaluate my own life in terms of subjective worth based on observed patterns of how people treat each other.
So, it's easy to turn this type thinking outward in a negative way.
I don't think I've said or done anything particularly cruel, though. I'm definitely not good at emotional manipulation or complicated schemes of revenge.
I just explode with emotion, but almost always apologize soon afterwards, too.