A word I grew fond of from reading Doc Savage pulps was William Harper Littlejohn’s “Superamalgamated”.
Some of these words are really Supercalifragilisticexpialidocious. But is there any song with them in the lyrics?
Hyperbole:
I’ve got a googolplex of things to do today.
I know you being humorous but:
The Tom Lehrer song Elements has a lot of long words in it.
Possible not in the song but two of my favorites are:
Rubdium
and Ytterbium.
Bicenquinquagenary for a 250th anniversary
For one I’d actually use, mellifluous
Blowjob
As a long time lover of filk music at SciFi/Fantasy conventions, I’ve heard him do this live. There was another filker present, named Tom Smith, dubbed “The World’s Fastest Filker”. The two have a longstanding friendly rivalry. After Longcor finished the song in question, he looked at Tom and said “Betcha can’t filk that!”. Tom left the room. People looked at their watches. 14 minutes later Tom returned and present the group with a song (to the same tune), called “Mucoidal Peridontia”, which isn’t about picking your nose, it’s about eating the booger after its picked.
Favorite long words include:
quisquilious - having the nature of refuse or rubbish
and
bathycolpian - deep-bosomed, which goes well with
callipygean - having a well-shaped bottom.
I’ve been to many a filk concert at many a convention…and I am so fucking jealous right now. 
Not just *triskaidekaphobia *but friggatriskaidekaphobia! 
Magnanimous is one I use often in conversation, but the already-multiply-mentioned antidisestablishmentarianism is usually what I trot out for my kids if talk turns to long words.
Defenestration is a great word- it always makes me think of David Eddings’s Sparhawk books.
The giantess Mirtai: “I defenestrated him.”
The Knight Kalten: “Mirtai! That’s a terrible thing to do to a man!”
Mirtai: “What, throwing him out of a window?”
Kalten: “That’s what that word means?”
Callipygian. Who would have thought there’d actually be a word for such a concept?
Synonyms: bootylicious, bumtastic, rumpalicious.
In Scorpion this week, Toby is trying to get a new term for genitals to take off and become part of everyday language. As if there aren’t already enough terms for the genitals! 
Onomatopoeia
“Aye Calypso , I’ll tell you a story, I’ll you a story that I know so well.”
It always bothered me that onomatopoeia isn’t spelled the way it sounds.
An easy one to spell! Its one of my favorites
Chrysanthemum-story behind this one. Neighbor’s father, I was telling I was a good speller. He said spell chrysanthemum, guess I was not that good of a speller as I thought I was. :smack::smack:
One of my more interesting memories as a child.
As apposed/opposed to disgruntled? :D:D
Just read the definition of apposed and opposed-seems like that are near alike…:eek::eek:
Struthiomimus, or simply struthious.
Discombobulated sounds like what it describes.