boner veins
When you’re so buff, you have veins leading down to your dick. This was a term coined by the ex vine star Cody Ko.
Woah, Chad has boner veins now?
seven vein boner
An enormous erection with veins popping out that resembles a midget arm holding a potatoe
I hit her over the head with my seven vein boner & she got a mild concussion