Tumptytumtoes

• Humpty Dumpty: eponymous character in the popular Mother Goose nursey rhyme → Humpty Dumpty
  • Wikipedia

• toes → Joyce's conception of Finn MacCool as a mythological sleeping giant, interred in the Dublin landscapr, with his head beneath Howth (Danish hoved, "head") and his feet sticking up in Phoenix Park
  • Wikipedia

• tum-ti-tum: a reiterated strumming, as of a stringed instrument

• t-t-t-toes → stuttering → HCE is a stutterer, like Parnell, his "hesitancy of speech" betraying his guilt

• tum, tummy: stomach

• tumulus: a burial mound; a tomb

• tum → tomb → the tomb of Isolde at Chapelizod?