Originally said by Butthead to Beavis, the phrase is said when you are watching someting really HOT that causes you a strong
erection, and then your friend tell you
something totally disguasting or stupid, and that causes your erection to disappear immediatly.
.....
Beavis: Yeah... and *poop*.
Butthead: What did you say?!
Beavis: I said "poop!".
Butthead: Beavis... you just sank my boner
to the ground.
I was watching an awesome music video showing
hot chicks in bikinis shaking their booties. And than this ugly, black, fat rapper appeared and it sank my boner
to the ground!