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1.
The art of forming rings as you exhale smoke while smoking.
Man, it took me forever to learn how to blow a smoke ring, but it was worth it!
by Cherished August 20, 2006
 
2.
To show disinterest, to exhibit a Cavalier attitude, or to show irreverence.
"I told him that the framus was bent, and all he did was blow a smoke ring!"

"I warned her that Teddy would leave her for good, but she just blew a smoke ring."
by KP: August 20, 2006
 
3.
To "blow a smoke ring" is to overheat and damage electronic equipment.
I'm not sure, but I'll bet a fan went south and caused your processor to blow a smoke ring.
by Jim Inman August 18, 2006
 
4.
To "blow a smoke ring" is to overheat or overload electronic equipment, causing damage to the overheated component and associated system failure.
I sure yet, but it looks like a fan went south and the processor gagged. I hope it didn't blow a smoke ring.
by Jim Inman August 19, 2006