methadozing

The act of falling asleep sitting up, shortly after taking a dose of Methadone.

Guard #1: How was your well being check?
Guard #2: I walked past cell 31 and inmate Jones was sitting on his bunk, but I think he was sleeping...
Guard #1: Oh, so he was Methadozing?
Guard #2: Oh yeah... he did just take Methadone at med pass.