"Cut a rug" is an idiomatic expression used to describe dancing. However, there are several synonyms for this expression that can add an extra layer of fun to your vocabulary. Some of the synonyms include "strut your stuff," "bust a move," "shake a leg," "boogie down," "get down," "groove out," "bop around," "salsa," "tango," and "swing dance." Each of these synonyms implies a different style of dancing that can elevate your expression and make it more exciting and diverse. So, the next time you feel like dancing, try experimenting with some of these synonyms to impress your friends and family.