Girlfriend voice refers to the change in pitch or tone of a man's voice when talking to their significant other. The girlfriend voice is characterized by a higher pitch and a more effeminate tone with speech patterns scattered with pet names and childish words.

女友专用调(girlfriend voice)指男士在跟自己的另一半说话时声调和语气上的变化。这种变化主要体现为：声调提高、语调更显温柔，并且不时夹杂着各种爱称和幼稚的语言。

This type of speech is usually frowned upon when used in the presence of other men. When another man uses this voice they will usually receive a fair amount of ridicule.

有其他男士在场的情况下，这种语调通常会被嗤之以鼻。如果有男士用这种语调说话，经常会受到嘲讽。

For example:

Did you hear Bob's wicked girlfriend voice when he was talking to Lisa? Let’s give him some whip.

你听见鲍勃跟丽萨说话时的那个腔调了吗?咱们去教训教训他。