Yawn Boner 

Sometimes called "Yoner", is when one gets an erection from excessive yawning. They will often come about with no warning and are usually harder than a normal erection. They will usually happen in the morning, often during class or at work.

Guy 1: Woah dude are you getting off to our math lesson?
Guy 2: No dude I've got a massive yawn boner right
Guy 1: Oh damn I hate yoners

Yawn Boner by Zoppy September 25, 2013

Yawn Boner 

When one yawns, starting a huge overall orgie of yawning that spreads throughout the room.

(Adam yawns)
(EP yawns)
(Dylan yawns)
Adam: That was a great yawn boner!
EP: Just a great overall yawn boner is what it was!

Yawn Boner by EPAK February 4, 2010

Yawn Boner 

alt: Yawny

A spontaneous erection triggered by yawning, often tied to neurological sensitivity or dopamine response. Sometimes affectionately called a yawny.

“He stretched and let out a big yawn… then quietly shifted in his seat to hide the yawn boner”

Yawn Boner by RNRKY April 30, 2025