The Wikipedia entry below suggests that
agitrons specifically indicate shaking, while
hites indicate rapid movement.
The Lexicon of ComicanaPlewds
Plewds are the flying sweat droplets that appear around a character's head when working hard or stressed.
Briffits
Clouds of dust that hang in the spot where a swiftly departing character or object was previously standing.
Squeans
Little starbursts or circles that signify intoxication, dizziness, or sickness.
Emanata
Lines drawn around the head to indicate shock or surprise.
Grawlixes
The typographical symbols that stand for profanities, which appear in dialogue balloons in the place of actual dialogue.
Waftaroms
Wavy, rising lines used to represent steam on hot or smelly objects
Agitrons
Wiggly lines aroung an object that is shaking
Blurgits, swalloops
Curved lines preceding or trailing after a character's moving limbs
Hites
Horizontal straight lines trailing after something moving with great speed, or indicating reflectivity (puddle, glass, mirror). Likewise, up-hites would be lines above an object falling.
Lucaflect
A shiny spot on a surface of something
Dites
Diagonal, straight lines drawn across something flat, clear, and reflective, such as windows and mirrors.
Solrads
Radiating lines drawn from something luminous like a lightbulb or the sun.
Vites
Vertical straight lines indicating reflectivity (compare dites, hites).
Other Terms
Additional Symbolia terms include whiteope, sphericasia, that-a-tron, spurls, oculama, crottles, maledicta balloons, indotherm, farkles, doozex, staggeration, boozex, digitrons, nittles, quimp, and jarns.
