Live it up and Let loose

Live it up verb - Enjoy oneself.

Let loose and live it up are semantically related in celebrate topic. In some cases you can use "Let loose" instead a verb "Live it up", when it comes to topics like achievement, revel, have fun.

Let loose verb - Turn loose or free from restraint.

Live it up and let loose are semantically related in celebrate topic. Sometimes you can use "Live it up" instead a verb phrase "Let loose", if it concerns topics such as achievement, revel, have fun.