chinese number internet slangs go!
1314: dis means FOREVER BITCH! 1314 (yī sān yī sì) sounds like 一生一世 (yīshēng yīshì) which means ONE LIFE ONE WORLD,, so people be like 1314 520 I LOVE U FOREVER BITCH

520: dis means i love you,,,, 520 (wǔ'èrlíng) represents 我爱你 (wǒ ài nǐ)! i mean it's a slight stretch but we've been using it for decades so like i don't make the rules 1314 520 ping ping biTCH!

555: it's pronounced (wǔwǔwǔ) so like the sound of me crying do u hear it 呜呜呜呜呜呜呜呜呜呜呜呜呜呜呜呜呜呜呜呜呜呜呜呜呜呜呜呜呜呜呜呜呜呜呜呜呜呜呜呜呜呜呜呜呜

748: pronounced (qīsìbā) which is used to say go and d-word please...... 去死吧 (qù sǐ ba),, we crude in mandarin so like asking someone to d*e is like asking someone to drink water i'm sorry i don't make the rules

995: 995 (jiǔjiǔwǔ) sounds like 救救我!!!!!!!!!! (jiùjiù wǒ). which means sAVE ME PLEaSe I BeG but i like how 995 is also an emergency number in other countries DO U SEE THE PARALLELS I LOVE IT

666: (liùliùliù) be like U DOING AMAZING SWEETIE KEEP IT UP WE LOVE U!! the word 溜溜溜 (liùliùliù) is pronounced the same as 666 and when someone says 你好溜 (nǐhǎoliū) it means you're so gooOoOOD

87: oh this one's a good one cos it's a borrowed word from english, 87 (bāqī) sounds like BITCHY asdjljklkdjsl but some natives also use it to mean 白痴 (báichī) which means idiot because not everyone assumes this is a borrowed word but THIS IS A GOOD ONE I LOVE THIS ONE

last one!! 7456: (qīsìwǔliù) means i'M ANGY!!!!!!!! it sounds very close to 气死我了 (qìsǐ wǒle) so next time when i type 7456 7456 7456 u know i'm going thrU IT