Definitions

1. proper noun

a female given name, especially one of English or Irish origin

“Britney Spears is a famous American singer.”

2. noun

a person who bears the name Britney, especially as a female

“The Britney at the party was singing a popular song.”

3. verb

to speak or perform in the style of Britney Spears, especially in a mocking or ironic manner

“She was Britney-ing the lyrics to the song at the karaoke bar.”