Terence Fletcher is the jazz instructor at the centre of Damien Chazelle's 2014 film Whiplash, played by J. K. Simmons, whose performance won the Academy Award for Best Supporting Actor. In the film, Fletcher leads the Shaffer Conservatory studio band with relentless, often abusive discipline, pushing drummer Andrew Neiman to his limits in pursuit of perfection. Clips of his voice became popular online as reaction sounds because his delivery is instantly recognisable even out of context, and creators still use short Fletcher lines to signal pressure, judgement and uncompromising standards in music, school and workplace edits.