Wooz said:i·ro·ny /ˈaɪrəni, ˈaɪər-/ P
–noun, plural -nies.
1. the use of words to convey a meaning that is the opposite of its literal meaning: the irony of her reply, “How nice!” when I said I had to work all weekend.
Use of irony is generally conveyed by tone of voice, something a text based medium lacks. In such a medium usually it is appropriate to use some sort of imagery to indicate you're using irony, such as

Of course

Since you like dictionaries so much...
resignation
noun
1. acceptance of despair
