Last year they had the Grammy's and left me in Miami
Sleeping on a nigga like I'm rapping in my jammies

from Lil Wayne – I'm Me Lyrics on Rap Genius

Lil Wayne’s Tha Carter II did not receive a Grammy nomination, which he considers a snub. They “slept on him” like he was in his pajamas (jammies), meaning they forgot about him/underestimated him.

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