Citations:ahegao

Noun: "(chiefly Japanese fiction) a comically exaggerated facial expression consisting of flushed cheeks, rolled-back eyes, and the tongue hanging out, intended to depict a person having an orgasm"

 * 2017, Takashi Kajii, My Little Sister Can Read Kanji: Volume 3, unnumbered page:
 * "The ahegao you draw is the best ever, ■■-sensei!."
 * 2017, Yomi Hirasaka, A Sister's All You Need, Volume 2, unnumbered page:
 * He showed off his best ahegao double peace. [sic]
 * 2017, Carolina Lindström, "'The power of characterization': A comparative analysis of the transformative works created by the English-language and Japanese-language fandoms of BBC Sherlock", thesis submitted to Stockholm University, page 26:
 * During the set of intercourse at the end of the story, Sherlock is also drawn featuring ahegao expressions, frequently used in hentai or pornographic works.
 * 2019, "Personals", The Medium (Rutgers University), 6 March 2019, page A6:
 * Without anime I would never have been introduced to such thought provoking concepts as ahegao or 15 year old girls with boobs the size of basketballs.