You say
"Okay, yeah and I'm coo-coo, ay?"

from Eminem – So Much Better Lyrics on Rap Genius

Meaning

“Well if you spent more time with me…”

“You tryna flip this on me like "If I spent more time with you”…"

“Ookey yeah and I’m cuckoo ey ?”

Continuing the bird imagery from five lines up ; “you’re gonna end up with a huge goose egg”.

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