Proper noun
Alternative letter-case form of slapgate (“Any of various controversies involving slapping.”)
(informal, neologism) The controversy around the 94th Academy Awards on March 27, 2022, when actor Will Smith walked onstage and slapped comedian Chris Rock during Rock's presentation for Best Documentary Feature, in response to Rock making an insulting joke about Smith's wife.
slapgate (usually uncountable, plural slapgates)
(informal) Any of various controversies involving a well-known person slapping another person or thing.