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After deciding they want a large family, the Lemongrabs make all of their food into children. Plop-Top, named by Lemongrab 2, is made with the very last of their food. The Lemongrabs say they greet "each new placid face" they make. Lemongrab 2 affectionately pats the child on the head. Lemongrab insists that they had agreed to name the child "Dump-Dome." The child merely blinks in response and emits a "piercing song" (a fairly short, high-pitched shriek) in its first appearance. After both Lemongrabs are given seeds to grow more food, they shove Plop-Top off the table to make room for the seeds that they impulsively bring to life, and name them Seed-Wad.
- He is one of few Adventure Time characters to not use any physical molds, although every Adventure Time NPC uses an exclusive mold.
- In the game, he is mistakingly referred to as "Lop Top".