male answer syndrome 

The tendency, especially among males, to make educated (?) guesses about subjects and present them as fact. The syndrome manifests itself most frequently when the sufferer is asked a question by a member of the opposite sex.

Female: Do I need to put premium gas in my car?

Male: Absolutely. If you don't, you will short out your cam injector bearings.

Female: Uh, I think you are suffering from Male Answer Syndrome.

male answer syndrome by fordsfords July 2, 2007