See my dick like Butter churn
Baby churn and ya girl with me fo’shure

from Tyga (Ft. Nicki Minaj) – Muthafucka Up Lyrics on Rap Genius

Meaning

A butter churn is a device used to convert cream into butter

Tyga got that long d*ck like the handle of a butter churn, that’s why your girl is with him.

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