" facetious "

 [ "facetious" ]

1: Treating serious issues or situations with deliberately inappropriate and/or offensive humour. This is often referred to as dark humour.

  * e.g.,  ... Johny bought his war veteran uncle Dan a pair of fancy socks for his birthday, which would not have been facetious if Dan still had his legs. 

 [ "facetious" ]

1: To make an attempt at being funny, while being sarcastic at the same time.

  * e.g.,  ... Jacky was being facetious when she said, "Yes, let's all go to Iraq for my birthday party!" 

 [ "facetious" ]

1: Along with abstemious, facetious is one of two words in the English language containing all five vowels in alphabetical order.

 [ "facetious" ]

1: An asshole's word for "sarcasm".

  * e.g.,  ... Stop being so facetious and tell me what you're going to do about the problem! 

 [ "facetious" ]

1: a word used exclusively by people who take themselves too seriously, while failing to convince people otherwise

  * e.g.,  ... John's attempt at making a joke crashed and burned. In an effort to save face and appear relatable, he announced to the room that he was merely being facetious. But not before first adjusting his monocle and tightening his ascott. 

 [ "facetious" ]

1: The word facetious is used exclusively by arts students to describe someone being sarcastic. Its generally said with a smug voice to make the person feel insignificant.

  * e.g.,  ... John: I think global warm in is a hoax. Look how cold it is outside! Sally: John quit being so facetious. John: Shut the fuck up Sally and keep managing McDonalds. 

 [ "facetious" ]

1: Playfully jocular; humorous.

  * e.g.,  ... The comedian made many facetious remarks. 

 [ "facetious" ]

1: Unique as the only word in the English language to sound like a variation of it's slang definition. In other words: It sounds like it may actually mean "full of feces" although it does not...but it does mean full of shit.

  * e.g.,  ... After telling that joke he said he was being facetious, but we all know he was just looking for a smarter sounding way of saying he was full of shit. 

 [ "facetious" ]

1: The only word that has A E I O U in it in that order

  * e.g.,  ... Did you know that 'facetious' is the only word that has A E I O and U in order? 

 [ "facetious" ]

1: Being facetious is when you say something you think is funny, but NOBODY laughs. So then you have to say "Oh, uh...I was being facetious". And everyone's like "Ooooh Kayyy... (What a jackass.)"

  * e.g.,  ... "An awkward silence fell over the group after his facetious remark about the director's 'ghetto booty' wasn't appreciated.