Someone who indulges in the use of marijuana on a regular basis and owns a pipe. Also known as a pot head, stoner, or skeevy loser. Chron heads usually use the word "chronic" or "chron" to describe weed/pot.
Origin: Derived from the word "chronic" and the common saying of "pot head".
"Dude you are such a chronhead. You've had like 4 bowls already today man, what is up with that?"
"Yeah, but man, this is some chronic shiz-nat. I guess I am a chronhead."