The phenomenon when a males mind becomes filled with extremely sexual thoughts when one has a boner. In other words a person thinks with their boner.
I had a serious case of boner brain in class and almost spunked my pants thinking of fucking Ms. Williams
by TadBitOfThad May 11, 2015
Get the Boner Brainmug. when there is a possibility of a huge snow storm, and everyone watches the local weather in anticipation
by mcdspanky5 December 7, 2009
Get the snow bonermug. When your grinding on your downhill skateboard and you get a massive engorged boner. This is usually shameful and people try to hid their skater boner even though they should be proud of it.
Max: Did you hear about what happened to Joey yesterday?
Lucas: What?
Max: He was shredding on his skateboard and got a skater boner.
Lucas: What?
Max: He was shredding on his skateboard and got a skater boner.
by kankz_69 May 22, 2017
Get the Skater Bonermug. The resulting boner one gets from the pure excitement of hearing about the upcoming 2012 Black Sabbath reunion.
Matthew had such a Sabbath boner after hearing of Black Sabbath's upcoming reunion that he could in no way concentrate on work. Or sit down properly.
by Woo Yeah Nester November 17, 2011
Get the Sabbath Bonermug. Figure of speech, meaning something is so awesome it could cause a vagina to have an "erection" (so to speak).
That fendi bag is so amazing its giving me a clam boner!!!!
I got a raging clam boner when I saw Bebe was having a huge sale!
I got a raging clam boner when I saw Bebe was having a huge sale!
by RaRa Rocket December 28, 2010
Get the Clam Bonermug. When you cant get a boner at other girls at a party because your penis feels guilty about your girlfriend.
"Dude, that girl in the skirt is so hot, I'd bang her"
"I wish I could, but I have a guilty boner"
"Sorry bro"
"I wish I could, but I have a guilty boner"
"Sorry bro"
by Rainbowsandponies February 12, 2014
Get the guilty bonermug. Being so proud of one's own country and culture that discussing their greatness gets your penis hard
Pat's watching Saving Private Ryan for the fourth time today. Yeah he gets a huge patriotic boner when he thinks of D-Day.
by Alverickflair September 26, 2015
Get the Patriotic bonermug.