How Do You Spell JERKS UP DOWN?
Pronunciation: [d͡ʒˈɜːks ˌʌp dˈa͡ʊn] (IPA) 
The spelling of the word "jerks up down" can be explained using IPA phonetic transcription. Firstly, the "j" is pronounced as /dʒ/. Then, the "er" sound is represented by /ɜːr/. The "k" is pronounced as /k/, followed by the "s" sound /s/. The word "up" is pronounced as /ʌp/, and "down" is represented by /daʊn/. So overall, the word "jerks up down" is pronounced as /dʒɜːks ʌp daʊn/. It describes a sharp and sudden movement upward followed by a similar motion in the opposite direction.
