This submission is currently being researched & evaluated!
You can help confirm this entry by contributing facts, media, and other evidence of notability and mutation.
"What Pumpkin?" is a common "tool" used by MSPA creator Andrew Hussie to annoy fans and create "optical illusions". Eventually, What Pumpkin became the name of one of the studios  by Andrew Hussie.
What pumpkin? was first used on Jailbreak when the command "Graft pumpkin so that you have one hideous arm" in which the pumpkin disappeared.
The text quickly spread through the MSPA fanbase when it was widely used through the series. Fanart of Andrew Hussie or other MSPA characters related to pumpkins exist. Eventually, it's popularity led it to be the name of a studio.
The pumpkin over the years
In Jailbreak, the pumpkin was simply white:
However, in Problem Sleuth, the pumpkin was more realistic and had color:
In Homestuck, the pumpkin was more cartoonish. The most notable one had Becquerel's face printed: