Shout out to my nigga Lud, shout out to my nigga Swank
For hanging at the crib and telling me what you think

from Childish Gambino – We Ain't Them Lyrics on Rap Genius

Meaning

A nod to some friends who are a part of the Royalty crew. Lud is Ludwig Goransson, Glover’s guitar player and mainstay producer. Swank (referencing Olori Swank) a friend / consultant of Childish.

https://twitter.com/OloriSWANK/status/204580187336228866

This could (and probably does) also refer to Jo Swank who also appeared on Real Estate

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