An extension of the adjective chill, hyperchill refers to something that is chill to the extreme.

Often refers to a situation which is chill in more than one way.
John: What were you up to last night?
Richard: I was hanging out on my uncle's boat all night just drinking and smoking with a bunch of my cousin's hot friends.
John: Dang man that sounds awesome!
Richard: Yeah dude it was hyperchill...
by Noaflo June 4, 2012
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