The phrase "wast off with you" is a rude way of telling someone to go away. There are many synonyms that can be used instead of this phrase. Some of these include "leave me alone," "get lost," "beat it," "buzz off," "scram," "shoo," "take a hike," "go away," "depart," and "vacate the premises." It's important to remember that the way you communicate with others can have a significant impact on how they perceive you. Instead of being rude, try expressing yourself in a way that is polite yet firm. This will allow you to communicate effectively without hurting others.