a fast one

a fast one

1. A trick, deception, or practical joke. Typically used in the phrase "pull a fast one." It turns out that the supposed alien visitors people had been seeing were just a bunch of teenagers pulling a fast one on the town. I've got a great plan to pull a fast one on the school for April Fools' Day. The fake article had been in print in the renowned scientific journal for more than a week before its author revealed that he had pulled a fast one.
2. vulgar slang An instance of sexual intercourse intentionally conducted in a short period of time; a "quickie." Yeah, we had sex, but it wasn't some big romantic thing—it was just a fast one. I can't believe you guys had a fast one in the bathroom at the reception! His clothes were rumpled and her hair was all tousled when they came back to the table, so I'm thinking they were off having a fast one!
See also: fast, one
Farlex Dictionary of Idioms. © 2022 Farlex, Inc, all rights reserved.

fast one

a clever and devious trick. (Compare this with pull a fast one.) That was a fast one. I didn't know you were so devious. This was the last fast one like that you'll ever catch me with.
See also: fast, one
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.

fast one

1. n a fast act of sex; a quickie; a quick one. I think we’ve got time for a fast one!
2. n. a fast or quickly performed activity, such as eating or drinking something. Here’s a tavern. You got time for a fast one?
3. n. a clever and devious trick. (see also pull a fast one.) That was a fast one. I didn’t know you were so devious.
See also: fast, one
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.
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References in periodicals archive ?
If your teacher knows you're not trying to pull a fast one, will she give you an extra day or two?