1 definition by AdaraJade
A method for measuring the level of humidity, depending on how frizzy one's hair gets once exposed to the air outside.
-It must be muggy today, check out this chick's hair
-Yeah that must be around an 8.5 on the Fro Scale
-Yeah that must be around an 8.5 on the Fro Scale
by AdaraJade October 20, 2013