An ostentatiously important person: I am into so many big things, such a big heat, that I must deal as I wheel (1980s+)
[perhaps a synonym for hot shot]
The movie we went to that Friday night in 1953 was The big heat.
But while he was up there riffing about Steiger, he looked like he did in the big heat.
The roof will sag at any big heat, and if of thin iron, will need propping.