| ...Because the worst part of the party is the cleanup, am I right?
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|“||Hey, wait. Ferb, isn't "simultaneously" on our list of "S" words seldom used by kids?||”|
— Phineas Flynn
In the episode "Lotsa Latkes" Phineas mentions that he and Ferb have a list of words that start with the letter 'S' and are seldom used by kids. From the brief clips in which the list is actually shown, the following list of words can be made, the majority of which are actual words with highly unusual definitions: