guinea


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guinea pig

Someone or something used as the subject of an experiment. Jane used her husband as a guinea pig to try her new baked chicken recipe. Craig earned a little extra money by signing up to be a guinea pig in some local clinical studies.
See also: guinea, pig

Serve as a guinea pig

Fig. [for someone] to be experimented on; to allow some sort of test to be performed on one. (Alludes to the use of guinea pigs for biological experiments.) Try it on someone else! I don't want to serve as a guinea pig! Jane agreed to serve as a guinea pig. She'll be the one to try out the new flavor of ice cream.
See also: guinea, pig, serve

a guinea pig

if someone is used as a guinea pig, new ideas or products are tested on them They're looking for volunteers to act as guinea pigs for a new AIDS vaccine.
See also: guinea, pig
References in classic literature ?
How the guineas shone as they came pouring out of the dark leather mouths
Having been at home a week or two partaking of the family beans, he had used his leisure in ascertaining a fact which was of considerable importance to him, namely, that his mother had a small sum in guineas painfully saved from her maiden perquisites, and kept in the corner of a drawer where her baby-linen had reposed for the last twenty years--ever since her son David had taken to his feet, with a slight promise of bow-legs which had not been altogether unfulfilled.
Next, it appeared to him that Sunday afternoon, when everybody was gone to church except Jacob and the cowboy, was so singularly favourable an opportunity for sons who wanted to appropriate their mothers' guineas, that he half thought it must have been kindly intended by Providence for such purposes.
And as if all this were not enough, he had a belt full of golden guineas round his loins.
Betwixt-and-Between," he added, "this bottle of yours is dry; and it's hard if I'm to pay sixty guineas and be grudged a dram upon the back of it.
Salvador, which was our port; and that, in my discourses among them, I had frequently given them an account of my two voyages to the coast of Guinea: the manner of trading with the negroes there, and how easy it was to purchase upon the coast for trifles - such as beads, toys, knives, scissors, hatchets, bits of glass, and the like - not only gold-dust, Guinea grains, elephants' teeth, &c.
Two guineas a-piece, boys--don't let 'em gain on us--keep it up-- keep it up.
To make some sort of disappearance had been his precise intention, but to disappear in this fashion and make his return to the world with a thousand guineas in his pocket, had not exactly come within the scope of his imagination.
He paid me ten guineas the other day to lunch with him.
In short, poor Conscience had certainly been defeated in the argument, had not Fear stept in to her assistance, and very strenuously urged that the real distinction between the two actions, did not lie in the different degrees of honour but of safety: for that the secreting the L500 was a matter of very little hazard; whereas the detaining the sixteen guineas was liable to the utmost danger of discovery.
Rebecca had never seen a Baronet, as far as she knew, and as soon as she had taken leave of Amelia, and counted the guineas which good- natured Mr.
Take care of your farthings, old Tinker, and your guineas will come quite nat'ral.
Thirdly, That the terms offered to the person who should undertake and properly perform these duties were four guineas a week; that he was to reside at Limmeridge House; and that he was to be treated there on the footing of a gentleman.
I told him I had been very much dissatisfied at my landlady's talking so publicly the day before of what she had nothing to do with; but I supposed she wanted what I owed her, which was about eight guineas, which I had resolved to give her, and had accordingly given it her the same night she talked so foolishly.
I immediately put my hand into my pocket, and, laughing to him, pulled it out, and there was in it three guineas and a half.