Kind of like a husband bomb only it is used by a man about his wife. It could be when a man subtly mentions in a conversation that he is married or that he has a wife or least implies it. Used especially by men who wish to cause prospective women to back off. Source: Good deduction. There is husband bomb, boyfriend bomb and girlfriend bomb. I think there ought to be one called wife bomb. That simple.
John..... a homely chick was intersted in me but I did not like her so I told her I was married. That got rid of her.
Joe...... Sounds like you dropped the wife bomb.