Two pills and a half weight,
A dose of two pills (Opiate, SSRI, etc…) and a “half weight” or .5g of any powdered drug (usually used in reference to cocaine). Since the song title is A.D.H.D he could be referencing the pills Adderall or Ritalin, which is used to treat A.D.H.D.
The homophone ‘wait’ may also be at play here with it being a feminine, terminal caesura to usher in the ensuing ‘fuck that/thought’ line and fellow homophone. Weight also sounds like way, referring to a ‘half way house’.
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