unicorn princess 

Someone who is overly proud of small accomplishments.
A braggart, but generally a great person who just likes to boast.

Also, could be considered a slang term for something so outrageous, silly, and/or trivial all you can do is chant:
"UNIcorn PRIN-CESS!!!!" and raise the roof.

"Can you believe I got that working in-game before you did? I can, booyah! It's cause I'm a UNICORN PRINCESS!!!"

unicorn princess by Gardenia Glow September 12, 2006

Princess Unicorn 

A Barbie-like doll whose father was king of the unicorn and whose mother was queen of the princesses. She has a wand and an awkward-looking unicorn horn in the middle of her forehead. When she was young, she was doused in radiation but instead of dying she obtained magical powers.

From the show The Office.

Princess Unicorn says, "My Horn can Pierce the SKYYYYY!"

Princess Unicorn by rena gantley March 17, 2009

GQMF UNICORN PRINCESSES 

A FABULOUS GROUP OF ONLINE TROLL-WARRIORS AND HARD-PARTIERS. THEY LISTEN TO ERASURE AND BANGS, TALK ABOUT HOT MEN, AND SPARKLE LIKE NO OTHERS. SOME OF THEM ARE PART-TIME GAY MEN. ALL OF THEM ARE AWESOME.

ZACH QUINTO: HEY, DID YOU HERE ABOUT THOSE GQMF UNICORN PRINCESSES?

CHRIS PINE: HELL YEAH, I DID. I WANNA TAKE ALL THOSE BITCHES TO THE MOVIES.

GQMF UNICORN PRINCESSES by CHRISSAFER May 12, 2010

Unicornprinces13 

Is on Tik Tok and is a fun loving guy. He likes to do random things for entertainment and is always making people laugh even when not trying. He likes to get into heated discussions about all kinds of topics usually not political topics unless it appeals to him.

Unicornprinces13 is my favorite Tik Toker.

Unicornprinces13 by AllyJay69 August 11, 2019