Jiggle
Part of speech: noun
Definition: a weak, shaking movement.
Part of speech: verb
Definition: To shake something gently; to rattle or wiggle. To shake, rattle, or wiggle.
Joggle
Part of speech: verb
Definition: To shake slightly; to push suddenly but slightly, so as to cause to shake or totter; to jostle; to jog.To jog or run while juggling.A engineering term meaning a step formed in material by two adjacent reverse bends.