After stuffing the Thingy in the biggest marshmallow he found, Jailbreaker has the sudden urge to put more stuff in that giant sweetmeat, more specifically people. So he does this:
Marsh-Mellow-Madness The Marshmallow falls at my feet and I eat it. Then I cough something up and realize its the Thingy. I take it and warp to the Wing Fortress Zone