squiggle
noun
[ ˈskwɪɡ(ə)l ]
• a short line that curls and loops in an irregular way.
• "some prescriptions are a series of meaningless squiggles"
squiggle
verb
• wriggle; squirm.
• "a thin worm that squiggled in his palm"
Origin:
early 19th century: perhaps a blend of squirm and wiggle or wriggle.