Flavored with ginger; containing ginger as an ingredient, or (figuratively) given extra energy, liveliness, or spiciness to something.
Past participle of the verb 'ginger', which can mean to add ginger to food, or to stimulate/enliven something (as in 'ginger up a plan')—the spice metaphor extends to adding excitement.
The verb 'to ginger' something up beautifully shows how taste words become metaphors for energy—ginger is spicy and stimulating, so 'gingering up' means adding excitement, which happens in every language.
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