High five
A high five is a hand gesture done with two people who want to express joy over an common achievement. The five refers to the five fingers on each hand.
Meanings
It might mean "Good Job!". High fives are not done because a person is mad at someone else, even though doing one may hurt.
Methods
To do a high five, both people open one hand and raise it, and slap them together. It is morally wrong to slap someone in the face, instead of the hand. Sometimes this is confusing.
Variations
Depending on the situation, a high-five may be changed to a slap-n-slide of the palms also known as a dab-up.
One Person High Five: Clap/Clapping
High Five Media
A high five between two U.S. Navy Sailors
NASA's Curiosity-rover team celebrate with high fives after the landing on Mars, August 2012. Variations seen include: the two-handed high-five; the top-shake swagger; the high-five gauntlet; the air-five; the high-five left hanging.
The gesture might have originated in American professional sports. Photo of Drew Storen (right) and Wilson Ramos of the Washington Nationals in 2011.
Edwin Encarnación (left) and Michael Saunders of the Toronto Blue Jays executing a two-handed high five in 2016
New York State Senators Velmanette Montgomery and Joe Griffo high five each other in the senate chamber.