Diddy Kong's Down-Throw + Up-Air combo in Super Smash Brothers 4.
When Diddy Kong throws his opponent down everyone will yell "HOO". It is then followed by a loud "HA" once he connects with the Up-Air. It was made to annoy the person playing against the Diddy Kong, thus making them extra salty.
"Dude, HBox just ragequit because of the guy going "Hoo-Ha" in the crowd."