gist

Short definition from Wiktionary

Noun

1. 1
   The main idea or substance, or the most essential part, of a longer or more complicated matter; the crux, the heart, the pith.
2. 2
   The essential ground for action in a lawsuit, without which there is no cause of action; the gravamen.
3. 3
   Gossip, rumour; (countable) an instance of this.
4. 4
   A sharable snippet of source code, especially on the version controlled pastebin-hosting site GitHub Gist.
5. 5
   A stop for lodging or rest in a journey, or the place where this happens; a rest.
6. 6
   Initialism of gastrointestinal stromal tumor.

Verb

1. 1
   To extract and present the main ideas or substance, or the most essential parts of (a document, piece of writing, etc.); to abridge, to summarize.
2. 2
   To talk idly; chat; also, to gossip.