Hello! I am sorry to differ with our kind friend pete, but I think he might have been distracted when he answered, perhaps? Kick up your heels is a very well-known and common expression for celebrating in a very active way, rather than relaxing. The idiom probably originated from the way a horse would frolic when let out of the barn. ( I think you might have been thinking about the expression "to kick back" perhaps, Pete? That one means to relax, ezzy.) Good question...hope you are planning to kick up your heels sometime soon! Also...cute baby!

It means to rest or relax. If you sit down and put your feet up and rest your feet on an object you are "kicking up your heels". But realize that it is just an expression. People don't really expect you to put your feet on their tables or chairs, HA HA.

I gotta stick up for Pete. This is old, but when I look up this phrase, it's a top search result so I want to give people more information. They are both right. It can mean to celebrate and let loose, but it can also mean to "take a load off" or relax and do nothing.... Recline on a chair or put your feet up for resting. Personally, I've never heard of it being used in terms of celebration... except dancing. I do hear it used in the way Pete used it, but this may be because over time the phrase kicking your feet up/kick up your feet got mixed with kick your heels up/kick up your heels.