Counter Sarcasm or "Advanced Sarcasm" is a defense mechanism used by highly trained sarcasticpeople to counter another persons sarcastic remark by responding to it as if what they just said was actually true.
Waitress: **walks up to table in her uniform with a pad and pen in her hand.**
Customer: Good morning, are you my waitress?
Waitress: No, i'm just standing here looking pretty!(sarcastically)
Customer: Oh, so who's going to take my order then? (Counter Sarcasm)
Used after a sarcastic retort to inform those too stupid to detect sarcasm by themselves. This is never spoken, only written, and generally only used in online forums or instant messenging and such.
Person A: You're so smart.
Person B: Thanks.
Person A: Whoops, forgot to include my sarcasm tags. <sarcasm> You're so smart. </sarcasm>
1) one who employs sarcasm often and well 2) one who studies the use of sarcasm
When sarcasm is mistakenly taken seriously, either the speaker is a lacking sarcasmist in the first sense of the word, or the listener and interpreter is lacking in the second (or, most often, both).
"Poe's Law kind of ruins it even for a skilled sarcasmist."
Sarcasm perceptivity deficiency is a socially crippling disorder which renders the sufferer oblivious to sarcasm and leads him to treatsarcastic remarks as if they were sincere.
An interaction with one who suffers from sarcasm perceptivity deficiency might go something like this:
Omar: Hey, let's have an in-depth discussion on existentialism and the significance of man!
Katherine: Gee that sounds reallly fun
Omar: Excellent, so Søren Kierkegaard...