Boy brain

When a guy says some outworldly primal shit that can only be construed as an act of machismo.

This guy was telling me of how it's his dream to die in WW3. What kind of boy brain shit is that?

by Mattricide June 12, 2019

boy brain

not thinking beyond your dick or your stomach about the impact of your actions on other people

my boyfriend doesn't realize it's our anniversary today. he is suffering from boy brain.

by truthbombdropper March 07, 2014

brain brothers

1. Two people who think alike
2. Conjoined twins connected at the skull

1. "Wow, I was thinking of pepperoni too! I guess that makes us brain brothers!"
2. "Being connected at the skull really sucks. I wish we weren't brain brothers."

by Steven Stamper, Billy Bozell July 17, 2007

Pregnancy brain

When your math teacher can’t teach no more

I searched for my keys in the refrigerator, must be my pregnancy brain

by Penisluver27 March 17, 2018

toss brain

noun, derog. an idiot, literally a wank brain or a person whose brain is capable only of masturbation

"Stupid toss brain can't count his nuts twice and get the same answer."

by kiwimich January 30, 2006

Boner-Brain

When ones intelligence level decreases as blood flow levels lower in brain to accommodate the needed increased flow to the penis during a erection.

I can't do math right now, I totally have boner-brain.

by JDiddy2Pretty September 27, 2015

Boner brain

when one has the inability to speak or function because all of the blood has rushed out of their head to their boner. generally makes the affected person very stupid for the duration of the boner. mainly occurs to men with large schlongs.

"she told me i could touche her boobs and i wigged out, i think i said 'i don't need to.' I NEEDED TO."

"Total boner brain dude, ouch."

by twiceonsundays June 03, 2011