What is '1314' mean in Chinese Slang?

This one’s all about romance and commitment. The numbers 1-3-1-4 sound like "一生一世" (yī shēng yī shì), which means "a lifetime" or "forever." It’s often used in lovey-dovey contexts, like couples saying they’ll be together forever. It’s also commonly paired with "520" (I love you) to say "5201314" (我爱你一生一世, "I love you forever").