Top Definition
The coolest dinosaur to ever walk the earth. It lays spotted black and pink eggs and its skin is dark blue with black lines down it's back. It's build is like that of a T-Rex but with proportional arms. It's eyes are a bright goldenrod color.
"So I'm doing a research paper on the Rihantasaurus! I'm so lucky! "
by TheLesbainDinosaur September 25, 2009

The Urban Dictionary Mug

Lotsa space for your liquids.

Buy the mug

The Urban Dictionary Mug

Lotsa space for your liquids.

Buy the mug

The Urban Dictionary Mug

Your favorite word on a white mug.

Create a mug

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug

The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

Buy the t-shirt

The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

Buy the t-shirt