At first I was like "so this is the Subeta version of a furry, right?" And then all the gifs helpfully reminded me of the Dion costumes out there and now my cat is looking at me like I'm nuts for laughing so loud.
No, I don't D: Just bought the 125 tickets item hahah
Memeing's great but that eye window is very distracting.
ahaha I love this.
I didn't know I needed this until now...
Please please please do recolours of this!! It's amazing.
This makes me so happy. Oh my gosh. Thank you.
This is hilarifying.

Well, this is officially the weirdest item ever released
Well I don't yet, but I will soon! runs off to the carnival to scrounge for tickets
It's wonderful
OH MY GOD, YES!!!
OH MY GOD THIS IS THE BEST THING I'm so glad I can afford it omg
This is the best thing ever lolololol
Whoever thought of this is awesome and I love you!
OPEN THE DOOR GET ON THE FLOOR EVERYBODY WALK THE DINOSAUR
oh, thank you! i thought it was a reference to something i didn't know about. i've seen those costumes in movies and such, but i thought it was more specific than that. [if this makes any sense at all]
Make a velosotor one too. :D (I actually own one of the t-rex costumes IRL <3 XD )
hmm well, nothing to see here

& it's not really american culture, since they're available in a lot of countries. It's more like internet culture, if that makes sense. ;) If you would like some more images, to perhaps get a better idea of what this thing is, Vat19 has several decent images and videos that may better show off how it fits and looks.
tl;dr? It's parody of a mass produced, air filled costume that people buy in order to move/dance/just be silly in.
All these dino gifs have enlightened me
finally a reason to change my HA
can you please make the t rex one?
Ahahahaa yesss ohman. My bro got one of those for his b day this month and its hilarious. Totally want more of these!
LMAO YES

BLESS YOU! I love this item ;u; I will wear it with pride!
this is
this is amazing
i love yall so much thank 4 this gift
oh my god, best idea EVER
Oh. My. God. Now we just need a Warador costume!!
i love it
We can't do T-rex Tuesdays here, but releasing this for Mortiking Monday is definitely okay with me :D
150 Carnival tickets Let's do it

I dunno how to do images in news posts BUT if it works adding to the inflatable dinosaur gif madness, my personal favourite: 
you are strange
Had to get it and wear it right away
You people are so strange.
Ok. I do love that you can see a bit of the face, that is an awesome addition.
This. Is. Great.
best wearable on site
(im so entitled rip forgive me)
I demand a Velosotor one
its only A+ until we get a version of this mortiking in skates then its A+++++
Noooooo I dont have enough, need to grind for tickets xD
Why yes I do have enough tickets! ;)
could you please enlighten me too? i'm not familiar with American culture - if it's a reference to something related to that...

A+++++
IT'S A NICE MEME