This emoji depicts chestnut as a reddish-brown colored one, with a pointed tip from its light brown base beneath. Chestnuts are associated with holidays like Christmas most often. It is also used in conjunction with dry fruits like; nuts, peanuts, and sometimes in slang language.
NOTE: Chestnut was approved for Unicode 6.0 in 2016 and in Emoji 1.0 in 2015.
:chestnut: (Github, Slack)chestnut emojiemoji copy and pastenuts emojipeanuts emoji