Green’s Dictionary of Slang

1. an Italian; also adj.

1941		Baker Popular Dict. Aus. Sl. 27: Eyeto (pronounced ‘eye-toe’), an Italian.
1955		N. Pulliam I Travelled a Lonely Land (1957) 89: It’s been a bit of a problem, you know, getting shoes for the Eyeto chappies.
1958		D. Stivens Scholarly Mouse and other Tales 65: As he got closer, we saw he was too tall to be a Pong or an Eyetoe.

2. the Italian language.

1958

D. Stivens Scholarly Mouse and other Tales 65: It didn’t sound like English to us but more like Pong yabber or Eyetoe or Dago gibberish.