Something relating to pyronauts or something in a volcano/extremely hot environment.
Did you hear the pyronautical dog?

Yeah

He just burned because his suit broke. Big L.
by Springbonnie87 July 2, 2021
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Someone who ventures into volcanoes or extremely hot environments
I saw Candice the Pyronaut die before the Joe the aeronaut, Ligma the terranaut, and Sugma the Aquanaut

Damn.
by Springbonnie87 July 2, 2021
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