Floop.
It is a lovely word.
What does it mean to you?
Nothing.
As a side question, does something qualify as being a word if it isn’t one?
A Don Martin character has just opened something. Maybe a suitcase. Maybe a communicator. Maybe an elephant’s ear.
It’s what the “Moops” walked on.
Yes, of course.
The sound your $3.99 burrito buffet meal makes the next morning.
Didn’t Douglas Hofstadter have a chapter titled "Floops and Gloops and "…umm something… in Gödel Escher Bach?
** goes to check **
… and BlooPs 
Phoebe on Friends met her mother who said she was ‘floopy’ that day and Phoebe understood what it meant. I think it’s related to the word ‘floop’ which I consider to be simply a sound effect and feeling ‘floopy’ means you’re feeling like you’d need to be making ‘floop’ sounds a lot.
The sound of something gelatinous hitting the ground.
It’s something like a flop, but not as firm.
I immediately pictured a Martin character when I read the word floop. I was coming in to post that it was a Mad Magazine sound effect.
In one episode of the Cartoon Network animated series Adventure Time, Jake the Dog and Finn the Human play a card game similar to Yu-Gi-Oh. Jake is an experienced player, while Finn has no idea what the rules are. (The rules, just as in Yu-Gi-Oh, are incredibly convoluted and difficult to understand.)
In the game, “flooping” a card means you turn the card over before using it to attack. One of Finn’s cards is a pig, and during the game he floops the pig – completely destroying Jake’s army of grain-based Husker Knights in the process. I laughed my butt off at that.
You can see part of the episode here: - YouTube.
My wife and kids got me a t-shirt featuring a sword-wielding Finn riding a pig, with the caption “I floop the pig” on it. I always get strange looks when I wear that shirt.
It’s a mixing between “food” and “sleep”. I.e., “Time to floop.” means “Time to get some quick food and go to sleep.”
No one ever saw Spy Kids?
I bought a donut in a branch of Lidl in Menorca which was, according to the label, a ‘Floopy Bonbon’. They had ‘Floopy Azucar’ as well, but I didn’t get one of them.
I would say it’s the sound of something gelatinous slipping out of your hands. Hitting the ground would be more of a “flomp”.
Going off at a tangent to the extent of altering of a final consonant; but seeing the word “floop”, immediately made me think of this guy – who gave me as a kid, much pleasure and amusement.
The cartoon-strip featuring Flook appeared for decades in the Daily Mail: a newspaper which has a bad name as a present-day British equivalent of Nazi Germany’s Der Stürmer. I am certainly no fan of the Mail; but even nowadays, it sometimes briefly forgets the right-wing hate-and-spite and prints something positive and worthwhile; and it tended in times past, to be somewhat less nasty and more “inclusive”, than it predominantly shows itself to be at the present time.
I second Don Martin.
It’s the sound the volcanic mud makes when encouraging a Giant Thesaurus (with long, dangling participles) to fall in.
What Sauron said though I’ve never actually seen an episode of Adventure Time.
Note that there is an actual card game: Adventure Time Card Wars: Finn vs. Jake | Board Game | BoardGameGeek
(there are more decks)
Review: BoardGameGeek
In that game “floop” pretty much means the same as “tap” in Magic: The[del] Purchasing[/del] Gathering. Magic trademarked the term so other card games have to come up with terms that mean “I used this card this turn as it can only be used once per turn”
Brian