My shit is rock solid, but it flows like fluid
Chemists get confused of my ill composition

from A Tribe Called Quest – Clap Your Hands Lyrics on Rap Genius

Meaning

Tip makes a play on words with chemistry here. By the Gas, Liquids, and Solids rule of chemistry, it is impossible for something to be both a solid and liquid, but Tip is just that ill.

Q-Tip uses this metaphor to describe how his production is, seeing how he handled much of the production for Midnight Marauders.

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