It means like the person that someone has on the side not including his or her girlfriend or boyfriend.
I text my friend really late at night. Just to see what was going on. Her boyfriend then asked if I was her "Side Meat".
Tin thường nhật
Địa chỉ email@example.com sẽ gửi thư cho bạn. Chúng tôi cam kết sẽ không để xảy ra tình trạng gửi thư rác vào hộp mail của bạn.