Answer: jiggle

AnswerCrossword Clue
JIGGLE

Rock lightly.

JIGGLE

Move with quick jerks.

JIGGLE

Slightly bounce

JIGGLE
Jerk around
JIGGLE
Shake a bit
JIGGLEDo what Jell-O does
JIGGLEShake
JIGGLEShake, like a faulty toilet handle