when a guy sees something he finds sexually stimulating and makes his penis become hard and he wants to fuck whatever it is
Jack: Yo you got a boner dude!

John: I know. That watermelon over there is pretty sexy
Jack: ...
by Marley :) June 24, 2017
Get the Boner mug.
*3 very sexy girls in one room*
Mark:My boner is telling me that all of them are a good choice.
by Jon200105 February 25, 2013
Get the Boner mug.
Worst thing to get during school
Ah shit I got a boner *class sees it* fuck I'm screwed.
by Ligmaboi308 February 6, 2019
Get the Boner mug.
What occurs when blood rushes to the penis, causing it to stick up. it is also possibly the worst thing to get before a school presentation.
While I was in a school play, I got a boner.
by Sapphire Flames February 16, 2011
Get the Boner mug.
When a guys dick is happy
"Man your boner is happy!"
by VastKilla February 7, 2015
Get the Boner mug.
The worst thing that could happen in a classroom full of people
Bob: Uh oh!
Joe: What is it?
Bob: I got a boner
Joe: OOF that sucks. Hope the teacher doesn't ask you to present
Teacher: Bob, can you come up here please?
Bob: Shit!
by TROLLKING9001 July 13, 2020
Get the Boner mug.
Erect penis that happens when a male is sexually excited/stimulated. When blood flow rushes to it and causes it to stick up directly!
Kade has got a boner. Look at him!
by loverb0yy April 15, 2021
Get the Boner mug.