MouseNuts 

A very, very, very, small amount.

Two schools of thought have been debating the original meaning of this term. It is unclear if MouseNuts refers to the size of mouse testicles or the size of nuts that a mouse might eat.

I wouldn't worry about it too much", David said, "it's worth MouseNuts".

MouseNuts by Mr.Ladner July 23, 2010

Moosenuts Idaho 

Middle of friggin' nowhere; slightly less further away than bum fuck egypt. Often used to describe an unknown, but seemingly far away place.

John's on vacation somewhere in Moosenuts Idaho.

Moosenuts Idaho by gridepsilon February 14, 2010

moosenuts 

actual meaning: It's a term for a sign of aging in a man, (Canadian origin) It's the time when your testicles hang down lower than the tip of your penis.

You could tell he was getting old as he had developed moosenuts

moosenuts by Helga Bungerbutt May 9, 2013