A person who is able to organise quality marijuana (usually a drug dealer) commonly referred to as chronic.
"Hey Jeff, do you have a chrontact in Las Vegas, I'm going there this weekend?"
I'm about to run dry, so I need to visit my chrontact.
Someone's drug dealer contact who has high end marijuana known to many as "chronic"
"Hey dude, im tryin to smoke, you still got that chrontact"?
The person you go to, to get your weed. This person generally only deals with weed and is a well known dealer usually having a huge clientele.
"hey do u know where I can get erbs?"
"ya here let me give u my chrontact"