I want to cut off my friends for lying to me and going on a trip that meant a lot to me without me
Why do you feel the need to cut them off over a trip?
My friends were so unappreciative of me and how the trip was that they couldn't even talk to me about it.
I'm sorry your friends lied to you to keep you from going, which was wrong.  That being said, instead of cutting them off you should try and talk this over and find out why they decided to do that.  Maybe it has something to do with how you behave?
I don't care about the trip. I'm going to cut them off instead.
It seems that you do care about the trip and just because they went without you doesn't mean you need to cut your friends out of your life. Friends should be more respectful to one another and not lie to each other. You should communicate your feelings more to them.