But that tab
Is light blue, she take it straight to the head
Light blue is the color of a small adderall pill, which is a perscription drug for ADHD but young people often also use it as a party drug to stay up and make their alcohol tolerence stronger. This may also refer to lortabs, prescription painkillers that are often abused at parties. .
Except she doesn’t take it the regular way, she is snorting it (“straight to her head”)
To help improve the meaning of these lyrics, visit "A.D.H.D" by Kendrick Lamar Lyrics and leave a comment on the lyrics box