The humidity was off the roof

This nice congruent conflation is a mash up of “off the charts” and “through the roof”, both meaning much more than usual.  It was heard on The Howard Stern show, uttered by that long-time caller to the program, Bobo.   He was describing the climate in Florida.  Many thanks to now Senior Vice President of Malaphors Mike Kovacs for hearing this one on the radio last week and passing it on.