Top Definition
When something is unbelievably crazy.

It is used instead of nuts when describing a person, place or thing.
EXAMPLE 1:

Person 1: Mate did you see that guy juggling like 10 balls at once on TV last night?

Person 2: Yeah man, it was firenuts!

EXAMPLE 2:

Person 1: Last night, I pulled an all-nighter watching Vampire Diaries

Person 2: You're firenuts.
by elliesmellie1234 November 13, 2010

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