"Blowing out" most often means extinguishing a flame with a breath of air. It can also mean causing something to burst, like a tire, or winning by a large margin. The sense depends on context, from candles to sports and engines.
Nirvana is not the blowing out of the candle. It is the extinguishing of the flame because day is come. Rabindranath Tagore
Suddenly Star Wars came out while we were on hiatus, and we looked like the old Buck Rogers series, where they had cigarette smoke blowing out the back of the rocket ship. Gregory Harrison
I used to pull rank and wait until the wind was blowing out. Joe Cronin
I get uncomfortable when people give me presents and watch me open them. I don't have birthday parties, because the idea of a group of people singing and looking at me while I'm blowing out candles gives me hives. Brit Marling
Taking in and blowing out smoke? And now you see girls smoking cigars. It got to be such a fad. Girls on the covers of magazines, smoking cigars. Give me a break. I didn't want to be a part of that. I don't like 'popular.' James Coburn