Desperation Debating
A move during an argument or discussion whereby a person (almost always a woman) has absolutely no comeback and knows in a fair fight they're beaten, forcing them into a totally nonsensical, unrelated Hail Mary response. This strategy occurs when the person (almost always a woman) either realizes the other person is right and it's best to try to throw them off or when they're simply an idiot.
Fred calmly explained to his wife Mandy that her continued credit card expenditures at high end department stores would likely threaten the family's ability to pay their bills, and definitely end any chance of sending their children to college. Mandy, calling on the crown jewel of Desperation Debating replied, "Yeah? Well you have a small dick!