Definition of "Insta"

Insta

/ˈɪnstɐ/

proper noun
1. (informal) Clipping of Instagram.
  Quotations
  These are the slaves to technology: the Candy Crushers, the Facebook fanatics, the Insta-idlers, the Snapchat servants and Twitter twiddlers who spend every spare minute absorbed by their screens.
  2018, Jack Lewis, The Science of Sin: Why We Do The Things We Know We Shouldn’t, Bloomsbury Sigma
verb
third-person singular simple present Instas or Insta's, present participle Insta-ing or Insta'ing, simple past and past participle Insta-ed or Insta'ed
1. (informal) Clipping of Instagram.
  Quotations
  Patrick Dempsey, who played Dr. Derek Shepherd for 11 seasons, Insta-ed a close-up of his masked face, captioning it with one of his catchphrases. "It’s a Beautiful Day to Save Lives," he wrote. "#WearAMask."
  2020 July 23, Jelisa Castrodale, “‘Grey’s Anatomy’ Gears Up for Pandemic Storyline in Upcoming 60,000th Season”, in Vice‎