I dont know who uses the word moked referring to drugs. getting moked means your getting done foul. if you got jumped real bad are aired out (shot up) they'd say you got moked out.
Perfect example, in the words of the late, great, notorious Biggie Smalls: "the nigga just got moked out like that, man" (Biggie Smalls - "MISS U")
As a verb, to blow a ginormus load of cum. Named after the movie in which such an ejaculation was first portrayed. To completely and utterly bust your nuts.
Last night Liz gave me head for the first time. I scary movied all over her face and the floor.
gf: oh yeah, you like that baby
me: Yeah. Omg don't stop, don't- uh. oooh OOOOOOOOOOOOOH CraAAAAAAAAAAAAAAP!
*eyes roll back into head and cumz so hard that he loses 30 pounds and blast her through the roof into space.
Astronaut: Commander did you just seethat?!