I like how you say Happy Born Day! I have been trying to get it to catch on for many years. Birth is some Admiralty law b$llsh$t. Thanks, I feel closer to you. Let's do this!

"The key differences between "born day" and "birthday" are:
Emphasis:
"Birthday" emphasizes the annual recurrence of the date on which the person was born.
"Born day" emphasizes the actual day the person was born, the beginning of their life.
Perspective:
"Birthday" looks at the event from an outside, calendar-based perspective.
"Born day" looks at the event from the person's own life perspective, the day they came into the world.
Connotation:
"Birthday" has a more common, conventional connotation.
"Born day" can have a more personal, spiritual, or philosophical connotation for some people.
Emphasis on Birth vs. Age:
"Birthday" focuses more on the person's age and the passage of time.
"Born day" focuses more on the act of birth and the beginning of life.