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1.
Of or pertaining to the nature of mathematics.

This can also be used as a figure of speech to describe something that would be considered good or exciting.
To understand many branches of science, one must be well versed in mathematical knowledge.

Dog: Hey, lets go do something fun!

Boy: Mathematical!
by Strange Comma July 01, 2010
 
2.
An expression that represents extreme happiness or awe.
1. Huckleberry- "Look I can see some young gals about our age skinny dippin' in the river!"

Finn- "Mathematical!"

2. Student- "What is the total of five nickels?"

Teacher- "... Twenty-five cents."

Student- "Mathematical!"
by raindropkisses October 29, 2010