Aside from the gag of Marisa having her broom the whole time, this is apparently a parody of an "I ain't got nothin' but some chikuwa!" meme based on a scene from What's Michael? (Chikuwa is a tube-shaped fish-paste cake. You often see slices of it in ramen.) It involves a man who gets accosted by a robber for money, but protests all he has on him is a piece of chikuwa. He himself seems shocked at this.
The surreality of the scene tickled folks on 2ch, who decided to use it as a stock response to "Sauceplz"-type posters. Edited images of someone else holding the chikuwa or similarly shaped objects inevitably followed.
ithekro said: More like, "Why am I flying when you have that thing?"
thatsthejoke.jpg
We're in a real mess now.The only thing I'm carryin' is my broom.WiltAhhh...I'm hungry.I can't fly anymore.Hey, hey...Just hold on a little bit more.It's impossible. I'm famished.Even if you just told me something was food...DrooplglrrllrrGNo way!Ker--plopIn the air again...