= vernacular
jargin is actually spelt jargon. but most people don't know that.
local jargin is a dialect used only regionally.
for example, in new england, wicked is used a lot. wicked is local jargin.
scene: berlin, nh
girl: that boy is wicked hot
boy: j chris he is!
(j chris being local jargin for jesus christ)
2👍 4👎