Meaning of あっとゆうま in Japanese

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Definition of あっとゆうま

あっというま(attoiuma) · あっとゆうま(attoyuuma) 【あっと言う間 ·あっという間 ·あっとゆう間】

(exp) a blink of time; the time it takes to say "Ah!" →Related words: あっと言う間に
興奮の連続に、あっというまもなく３０分のショウタイムが過ぎてしまいました。
In all the excitement the 30 minute show-time passed in a flash.

あっというまに(attoiumani) · あっとゆうまに(attoyuumani) 【あっと言う間に ·あっという間に ·あっとゆう間に】

(exp) just like that; in the twinkling of an eye; in the blink of an eye; in the time it takes to say "ah!"
休暇はあっという間に終わった。
The holiday ended all too soon.

The hand of the magician was quicker than our eyes. Before we could say Jack Robinson, the cards he was holding between his fingers disappeared.