Learn about interjections.. Star Wars mash-up

Star Wars Rock – Interjections (by OneMinuteGalactica):

”In grammar, an interjection or exclamation is a word used to express an emotion or sentiment on the part of the speaker (although most interjections have clear definitions). Filled pauses such as uh, er, um are also considered interjections. Interjections are often placed at the beginning of a sentence.“