For some reason this reminds me of the Mad Hatter's tea party from Alice in Wander Land. Derpy would be the Mad Hatter because she seem like the leader of this group how she demands more tea. Screwball I can see as the March Hair. And that leave Screwloose (Barking Mad) as the Door Mouse, you can almost hear her barking out "Twinkle Twinkle little bat how I wander what you're at."
They're coming to take me away, ha-haaa!! They're coming to take me away, ho-ho, hee-hee, ha-haaa To the funny farm. Where life is beautiful all the time and I'll be happy to see those nice young men in their clean white coats and they're coming to take me away, ha-haaa!!!!!
Oh dear look at the time Its spectical past a walnut! Where are my hunginfrasins? Well ill largly accept a potato for that shoelace but for now i must adorn to the backwards hammock! Tata! Dont talk to an ricelifting purple now!
'Take some more tea,' the Mail Mare said to Twilight, very earnestly.
'I've had nothing yet,' Twilight replied in an offended tone, 'so I can't take more.'
'You mean you can't take LESS,' said the Madcap: 'it's very easy to take MORE than nothing.'
'Nobody asked YOUR opinion,' said Twilight.
'Who's making personal remarks now?' the Madcap asked triumphantly.
Twilight did not quite know what to say to this: so she helped herself to some tea and bread-and-butter, and then turned to the Floorhorse, and repeated her question. 'Why did they live at the bottom of a well?'
'There's no such thing!' Twilight was beginning very angrily, but the Madcap and the Mail Mare went 'Sh! sh!' and the Floorhorse sulkily remarked, 'If you can't be civil, you'd better finish the story for yourself.'