first for first

first for first

A common comment on popular social media posts that promotes the exchange of "likes," in which one requests a "like" on the first picture on one's own page in return for liking the first picture on the other person's page. Often abbreviated as "F4F." Ever since I started writing "first for first" on famous people's posts, my Instagram pictures have been getting way more likes!
See also: first
Farlex Dictionary of Idioms.
See also:
  • F4F
  • at will
  • be hoist by (one's) own petard
  • be hoist with (one's) own petard
  • be hoist with one's own petard
  • be hoist/hoisted by/with your own petard
  • (one's) jig is up
  • about (one's) business
  • about business
  • be on (one's) pat