How to explain quitting your last job, and if it's even worth mentioning?

I have a really important interview coming up, and I would like to avoid saying I quit my most recent job. What are some ways that I can kind of make it sound like I left on good terms? Or if I can get away with not mentioning it- what could I say in place of “I quit”

I don’t like lying to employers because I can usually sense when someone knows I’m full of crap, or when they don’t like what they’re hearing. I did not leave my last job on good terms, and I usually have a way of telling people things I should not mention.