"Roll in the lap of luxury" is an idiom that refers to living an opulent lifestyle. There are several synonyms for this expression, each with their own unique connotations. One such synonym is "live in the lap of luxury," which emphasises the state of being rather than the act of rolling or moving. Another is "live high on the hog," which has a more rustic feel and indicates a comfortable, indulgent existence. "Live the good life" is a classic expression that conveys a similar sentiment, suggesting a luxurious, carefree way of living. "Live like a king/queen" is also a popular synonym, but this carries more of a sense of entitlement and excessiveness than the previous examples.