[Meaning one who is] beating [sc. the ground] in the chorus.
Greek original · Adler’s text
Χοροιτύπος· ἐν τῷ χορῷ τύπτων.
Betacode
*xoroitu/pos: e)n tw=| xorw=| tu/ptwn.
Notes
Same entry (according to Adler) in the Ambrosian Lexicon (285); similar one in Etymologicum Magnum 813.49. The headword is an epic/poetic adjective, occurring in a fragment of Pindar quoted by Pausanias (3.25.2), as well as several times in Nonnus' Dionysiaca.