Best 'small Successor'?

[Subotan]

Sarcastic, not ironic.

Really? I knew I was being sarcastic, but I thought that it was for ironic effect.

[Xurr]

Really? I knew I was being sarcastic, but I thought that it was for ironic effect.

Irony is coincidental or unexpected, sarcasm is intentional.

[Subotan]

Then there's the other definition of irony, where the exact opposite to what you'd expect happens, like an optician going blind or Advice Dog.