I am a girl and casually said: eggs hurt. What do boys mean when they say you have eggs?

Please refer to the price of eggs in some provinces and regions of China on May 2: Shandong 3.05 yuan a catty? Hebei 3.035 Anhui 2.984 Henan 2.95 Jiangsu 2.945 Liaoning 2.775

I don't understand. That's all I can do, for reference only. thank