I can (up)
Can I (up), let me
(partner let me upgrade you)
Bey is being clever and coy here; she’s switching from confidence (I can) to asking demurely and politely (can I?) to insisting (let me) to speaking to Jay-Z in informal friendly terms, as if in a man-to-man talk with him (pardnah, let me). Through such virtuosity in tone and attitude, she shows us how expert a salesperson she is, wheedling Jay-Z into letting her upgrade him despite his skepticism.
To help improve the meaning of these lyrics, visit "Upgrade You" by Beyoncé (Ft. Jay Z) Lyrics and leave a comment on the lyrics box