But I cannot tell a bubble from a squeak.

I can always tell a hari from a kari

("Harakiri" is a silly pedant's freak);

I can tell the style of Caine from that of Marie;

But I cannot tell a bubble from a squeak.

I never take a Deeley for a Dooley;

I never take a putter for a cleek;

I never talk of Healy, meaning Hooley;

But I cannot tell a bubble from a squeak.

I understand the sense of "oils are spotty";