Not necessarily Ironic

• The word comes from the Greek for "to tear flesh, bite the lip in rage, sneer"
• The word was first recorded in English in 1579, in an annotation to The Shepheardes Calender by Edmund Spenser
• The word is defined as "a sharp, bitter, or cutting expression or remark; a bitter gibe or taunt."
• In English, the word is often telegraphed with kinesic/prosodic cues by speaking more slowly and with a lower pitch and with the use of air quotation marks. Similarly, Dutch uses a lowered pitch; sometimes to such an extent that the expression is reduced to a mere mumble
• Chandler Bing from The sitcom "Friends" is regarded "The King of This Word"

What am I talking about?

Answer (highlight to read) : Sarcasm