- mona is right, the word is 'enjut/enjutan'.

- for me, to 'enjut' is to bounce in a gentle pulsating manner, as is cutomary in our southeast asian dances. the motion is not jerky at all [therefore i disagree with bash's suggestion of 'jerk'] but is a sort of rhythmic oscillation caused by the shifting of weight on different foot or on different parts of the feet. it is different from those muscle isolation movements (like belly undulations) famous in middle-eastern or indian dances.

- one can also 'enjut' if in a swinging motion like "mengenjut buaian anak" esp those malay hammocks of old that used sarongs coiled springs (endoi - as we johorians call it).