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.
A Buddy Boner is an erection that a man gets while hanging out with his male friends. It doesn't mean that he's gay; it just means that he's having a good time.
When Bill and Mark played poker together they each developed buddy boners. Man, were they ever having a good time.
When two males are wrestling and one has the sudden urge to erect his penis in the midst of grappling.
Tyrome was grappling Thomas during the wrestling match when all of a sudden, Thomas's Wrestler's Boner surprised Tyrome and Thomas got on top of him for a submission.