Is at the knock out in the park

• Castleknock: a village west of Phoenix Park
  • Wikipedia
  • A Finnegans Wake Gazetteer

• knock → Castleknock Hill and Windmill Hill (now Mount Hybla) are identified with Finn MacCool's (and HCE's) two feet
  • The Sigla of Finnegans Wake → p. 13n: "In the time of D'Alton, The History of the County of Dublin (Dublin, Hodges & Smith, 1838), p. 641, these were prominent, one crowned with a tower, the other with a castle

• knock → hill (Irish cnoc, "hill"; Anglo-Irish knock, "hill")

• Knockmaroon: (Irish Cnoc na Marbhán, "the hill of the corpses") a locality in the northwest corner of Phoenix Park
  • A Finnegans Wake Gazetteer

• knock: to knock down → Humpty Dumpty

• knock out: to knock someone out, to render them unconscious → in Sheridan Le Fanu's 1861 novel The House by the Churchyard, a character is attacked and left for dead in the Hollow in the Phoenix Park
  • knocked out: unconscious, like Tim Finnegan, Finn MacCool, and HCE

• knock out: a knock-out in a boxing match