geek out over (someone or something)

geek out over (someone or something)

slang To express excitement and enthusiasm about one's very specific and sometimes unpopular interest, especially by talking about it in great detail. A: "Can I just geek out for a minute over how gorgeous Nicky Hopkins's piano playing is on this song?" B: "I don't know who that is, but sure?" Oh, you know Dad—he's just geeking out over some exotic bird he spotted on the hike.
See also: geek, out, over
Farlex Dictionary of Idioms.
See also:
  • geek out
  • geek out about (someone or something)
  • get carried away
  • throw cold water on
  • throw cold water on (something)
  • ripple of excitement
  • go from zero to hero
  • have (one's) heart stand still
  • have heart stand still
  • one's heart stands still