2 definition by Expression of happiness

Top Definition
When you are talking and then have a random smart moment.
"Your mom just had a brain boner about robotics"
by Expression of happiness July 22, 2014

Mug icon
Buy a Brain Boner mug!
A person or thing that spreads happiness to others around them
John over there is a merpadoodlesaurus
by Expression of happiness June 13, 2014

Mug icon
Buy a Merpadoodlesaurus mug!