Findings:

• sarcastic
• sarcastic punctuation
• I don't even know when I am being sarcastic anymore
• sarcastic (user)
• sarcastic clapping
• Sarcastic Fringehead
• Sarcastic Hero (user)
• sarcastic ninja (user)

If you Log in you could create a "sarcastic and unamused" node. If you don't already have an account, you can register here.