To hack a stiff; to smoke (weed or whatever the hell) despite it causing a terrible hacking cough. Whether from smoking itself or asthma.
"Where's Bill?"
"Out in the backyard hacking a stiff."
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"Hey, wanna hack a stiff with me?"
"Nah man, nearly coughed up a long last time."
by 3AM-entry February 1, 2020
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