And I got a girlfriend so I'm a keep lying until the verse end, FIN

from Tyler The Creator (Ft. BranDun DeShay, Hodgy Beats & Mike G) – Session Lyrics on Rap Genius

Meaning

I was dating * at the time so though the previous statement is true, it wasnt true at that time cuz I had a girlfriend already.
FIN = Im done Chris Brown voice**

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