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1.
When someone, most often a male, says or does something thats unnecessarily mean or stupid. Male version of bitch move. Or a when i man thinks with his dick and not he brain.
Cindy: Hey john, do these pants make my me look fat?
John: Don't be stupid Cindy, of course they do.
Cindy: Wow, boner move right there.

Lucy: Did you know your boyfriend went home with that slutty girl last night after the party?
Taylor: Well after that boner move hes not going to be my boyfriend anymore!
by C. R. P. March 06, 2010