What the &@!* Is He Saying?

Have you seen the Schick Quattro ad? The one with the ‘scientists’ and the guy on the running machine?

What the bloody hell is the first old scientist saying?

Sounds like ‘to see if it really is off-da-hazy’.

What is ‘off-da-hazy’? It’s driving me mad!! I even tried turning on the subtitles, but nothing … Gah!