It is awesome, but I don't think it's a crash blossom. It seems closer to an eggcorn, which is based on the similarity of sounds, in this case those of err and air. Linguists argue about such stuff, as they vape their errs.
"As Geoff Pullum has pointed out, eggcorns are tiny little poems, a symptom of human intelligence and creativity:
It would be so easy to dismiss eggcorns as signs of illiteracy and stupidity, but they are nothing of the sort. They are imaginative attempts at relating something heard to lexical material already known. One could say that people should look things up in dictionaries, but what should they look up? If you look up eggcorn you'll find it isn't there. Now what? And you can't look up everything; sometimes you think you know what you just heard and you don't need to look it up."
Tootle Puffers interested in the arcane distinctions between eggcorns and crash blossoms can get their juices flowing here Language Log: Eggcorn terminology
and here, respectively. Language Log » Crash blossoms
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). My 3 cents. 
