a word used to describe the feeling of tripping on a hallucinogen such as LSD, shrooms, Ayahuasca, etc.
No I can't go to the fundraising event, I'm fuckin yonked out of my mind.
by Toe Knee226 February 18, 2014
1 more definition
The act of shooting saliva from the glands below your tongue
Sometimes when you open your mouth spit uncontrollably flies out. You would say, "Sorry I yonked."
by Boker December 02, 2006