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Grass Brain

After many years of being a Grass Head, one will shun their friends and family to marry their lawn. A form of insanity that few ever possess. It is a cureable disease that controls your mind and heart.
Mr. Smite is now married to his lawn. Some say he's just a wack job. But we all know he has Grass Brain. Poor guy...
by Spirit Girl September 8, 2010
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nut brain

"Sorry Mrs. Lewis, I can't do todays equations due to my severe nut brain."
by boogerhooker April 20, 2018
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Cum brain

When you’re in a mental state of horniness and you can’t think straight. Usually the stage before post nut clarity.
Sarah: *out of breath* Did you say you loved me?!?
Bobby: *also out of breath* Oh shit my bad I had cum brain. Sorry I wasn’t thinking straight.
by iamanthonydean January 15, 2021
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brain one

If you have brain one you should know that evolution is an integral part of science.
by The Return of Light Joker October 28, 2011
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Orgasm brain

When you ignore all good sense and reason just to have an orgasm
Jim: bro I was about to finish in my girl and she wanted me to pull out but orgasm brain kicked in and I was like "fuck no bitch" so I'm single now and in 9 months I'm bout to have a chat with Maury.......
by Lookinstuup August 13, 2016
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Guy Brain

The secondary brain that all men have that controls their sexual urges. It often overrides the primary brain.
I'm sorry baby. I must have been thinking with my guy brain instead.
by Tyronius Nomis December 20, 2010
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spliff brain

by Lm1815 June 24, 2018
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