The correct spelling of the word is "sits butt." In IPA phonetic transcription, the pronunciation is /sɪts bʌt/. The first syllable is pronounced as "sits" with a short "i" sound and the "s" sound is voiceless. The second syllable, "butt," is pronounced with a short "u" sound and a voiceless "t" sound at the end. This word refers to the posture of sitting with one's buttocks resting on a seat or surface.
The phrase "sits butt" does not have an established etymology as it appears to be a combination of two separate words. "Sits" is a conjugation of the verb "sit", meaning to rest in a seated position. On the other hand, "butt" typically refers to the backside or posterior. However, it is important to note that "sits butt" does not constitute a common or recognized phrase in English.