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1.
when something is "cold", such as a diss, it can be called "frigorific". Or when its cold outside, you can jazz up your sentence with "frigorific" instead of just "cold" or "chilly".
"It's very frigorific today."
"That diss was frigorific!"
by Dollarboy1000 January 18, 2007
 
2.
super-cool, cooler than cool
frigorific, man!
by tim999999999 July 25, 2011