Or we can go upside your head with a bottle of bub'
They know where we fucking be

from 50 Cent – In Da Club Lyrics on Rap Genius

Meaning

So, if they hate you have two options:

  1. Let them hate, and watch the money pile up
  2. Hit them in the head with a champagne bottle

50 is from Southside Jamaica, Queens which is known for not being a friendly place so hitting you over the head with a bottle is just a regular thing; nothing they’d hesitate of doing if they truly wanted to. It’s also a way for him to say ‘'here we are if you wanna come see us!’‘ He’s not scared of ya.

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