To deliberately put someone under the influence of a psychotropic drug without their knowledge or consent. Most commonly used when referring to LSD. This can be accomplished by spiking a victim's food or drink, exchanging medications found in their home for the elicit substance in question, or by spritzing them in the face with a diluted preparation of the drug via a spray bottle.
Dude, I think I got dose raped at the Phish concert last night. I was just swigging on my hemp soda when all of a sudden I started hearing colors, seeing sounds, and tasting smells. Then I got really dizzy and threw up on my girlfriend.