(Da da do) that's when we popping them bottles
With some models on our hip is some hollows (Dipset!)

from Cam'ron (Ft. Mo' Money) – Living A Lie Lyrics on Rap Genius

Meaning

Cam and his crew used to call “da da do” when the police would cruise their block. Now? They make the same call when they’re partying in nightclubs. The quartet of lines is classic rags-to-riches stuff

The imagery also introduces the next story. Cam attended a celebrity bash at a nightclub (presumably with bottles of liquor, fashion models and hollow tipped bullets) the night he was shot

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