And if she's on my pipe, I will make her go down - Drano

from Big Sean – Supa Dupa Lyrics on Rap Genius

Meaning
  1. If Lindsay’s on his pipe (an actual drainage pipe), he’ll make her go down it. And that’s efficient drainage for you

  2. If Lindsay’s on his proverbial pipe (his erect penis), he’ll make her go down (and presumably take it in the face)

What? You don’t think it can happen?
Think again

Now you know

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