2 definitions by Pupseus

Fingers in his ass is a meme mainly quoted/said by Danganronpa fans on a site called tumblr or Danganronpa fans in general.
The sentence is usually associated with the pairing sansmaeda. There is also a thing called fingers in his all sunday. On Sundays people gather to appreciate the song fingers in ass and sansmaeda. On December 16th 2018, the day before tumblr's adult content ban fans of sansmaeda and fingers in his ass sunday celebrated what was called the "final" fingers in his ass sunday.

Origins:
On july 17th, 2017 user named skeletortilla uploaded a video on tumblr that had Nagito Komaeda from Danganronpa 2 and Sans from Undertale dancing together to a song called "ASSHOLE (Fingerfückung)" made by BotanicSage on youtube.
Kanye west he likes fingers in his ass
It's fingers in his ass sunday!
by Pupseus December 17, 2018
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A pairing/ship between Nagito Komaeda from Danganronpa 2: Goodbye Despair and Sans the skeleton from Undertale. The characters are both very memeable so people have decided to ship them together. Also they both have many fangirls.
by Pupseus August 22, 2018
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