Zoner Boner 

When you zone out/daze in class or anywhere and get a boner

I was staring at the board in class and all the sudden I got a zoner boner

Zoner Boner by plz eat me January 20, 2020

Boner Zone 

-anything that a male human finds arousing

That redhead with the bodacious rump really hits me in my boner zone.

Boner Zone by GrEEKNESS75 June 30, 2019