The act of hanging out (chilling) in the presence and use of cannabis (chronic). The use of chrilling removes the need to mention that weed was involved while people were with each other.

The "h" is silent. Other uses include "chrill" and "chrilled"
Steve, "Hey man, what are you doing tonight?"
James, "Nothing bro, the usual shit. Just chrillin with the homeys."
by itswhatwedo91 February 16, 2013
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