When we nodded, she broke into a wide grin, gestured with two thumbs up, and finished off with a high-five.
(Roaring with delight and giving me a high-five) That will be my new quote.
A guy in a classic Chevy Impala stops to high-five people passing him.
originally U.S. basketball slang, 1980 as a noun, 1981 as a verb, though the greeting itself seems to be older (e.g. Dick Shawn in "The Producers," 1968). In reference to the five fingers of the hand.