Live it up is an expression that means to enjoy life and have a good time. The crossword solutions for this term are CAROUSE (7 letters), ROISTER (7 letters), PARTY (5 letters), REVEL (5 letters), haveagoodtime (13 letters), and paint the town red (15 letters). All of these words refer to activities that involve having fun and enjoying oneself. CAROUSE and ROISTER both refer to boisterous behavior, while PARTY and REVEL suggest more organized events. Haveagoodtime and paint the town red are both idioms that mean to have a great time.