squiff out
To lose consciousness and collapse due to an overdose of drugs or alcohol. You were so hammered that you squiffed out halfway through the night. He just kept doing more heroin until he finally squiffed out on the sofa. I thought he was dead, for sure.
squiff out
Sl. to collapse from drink. Hank squiffed out at midnight, right on the dot. she kept from squiffing out and barely made it home.
squiff out
in. to collapse from drink. Hank squiffed out at midnight, right on the dot.