Definition of "Chair"

Chair¹

proper noun
1. (often with definite article) Chairperson.

Chair²

proper noun
1. (fandom slang) The ship of characters Chuck Bass and Blair Waldorf of the Gossip Girl series.
  Quotations
  His skill renders Becker's portrayal of Prince Grimaldi, a lover and future husband, futile in the wake of Chair (Chuck and Blair).
  2011, Brionna Jimerson, "'Gossip Girl' conceives unrealistic plotlines, child", The Tufts Daily (Tufts University), 6 October 2011, page 11
  We can already tell which idyllic couples obsessive fans will fantasize about like Chair (Chuck and Blaire of "Gossip Girl") and Jim and Pam of "The Office."
  2012 October 18, Haley Boston, “TV Review: 'Nashville'”, in The Daily Northwestern, Northwestern University, page 4
  Although Josh Schwartz suggests that “Chair” or “Dair” fans are embroiled in a “battle” on Twitter, the users of the Gossip Girl FanForum do not appear to engage with each other directly.
  2014, Lori Bindig, Gossip Girl: A Critical Understanding, page 143