Having to do with or relating to marijuana and all things similar to it. Can be used in numerous parts of speech.
verb: "Yo, when are we gonna yart?"
"We were yarting on the beach."
"I yarted with Bob."
noun: "Give me my yart back!"
"Where did you get this yart?"
"The yart is in the bag."
adjective: "I just ate a yart brownie."
"That yart cookie fucked me up."
"Bring weed, we're having a yarty."