A romance/sex movie, hentai, or porno that is so bad or disturbing you don't get a boner or you stop having one during one or more of the parts that are bad.
Friend 1: So what did you think of 50 Shades of Grey?
Friend 2: It was the worst boner wrecker I have ever seen so far.
Friend 2: It was the worst boner wrecker I have ever seen so far.
by mintwo November 26, 2015
Similar to Boner Shock - but rolls off the tongue better - Anything that causes the blood to drain from an erect penis - usually in a most unscrupulous and hurried fashion.
Such as when you're mother walks into your room - with or without your girlfriend involved! OR your girl's old man turns on the porch light just when you were about to make our smooth move... NOT - Boner Wrecker! or when you can't get the condom on fast enough..SO sad... total Boner Wrecker.
by Jean Nate August 4, 2011