[etblg]

Error: Compiler warning: Appeal to Authority fallacy detected on line 8, your argument is hereby invalid

or whatever fallacy nerds like bringing up in debates, just pick your favourite one and insert it here.

[Terr_]

> your argument is hereby invalid

Which is not-quite but sometimes leads to a Fallacy Fallacy comeback: Just because the argument is unsound doesn't mean the conclusion is wrong. :p