Green’s Dictionary of Slang

(US drugs) a habitual marijuana user.

1936		(ref. to 1920s) L. Duncan Over the Wall 21: I saw and became familiar with [...] the griefers who were habituated to marijuana or Mexican hemp.
1953		Anslinger & Tompkins Traffic In Narcotics 309: griefer. An addict who is habituated to marihuana or Mexican hemp.
1959		Murtagh & Harris Who Live In Shadow (1960) 21: Every time they get me I sing them some song. I give them the name of every griefer or shoe-and-booter who hangs out in my joint.