velocilepsy
a twitchy dance move favored by alt and art-rock singers. tuck your arms in like a velociraptor or tyrannasaurus, roll your eyes back, hang your mouth open, and throw a seizure to keep yourself busy while lead guitar does their thing.
buddy: "man thom yorke's got velocilepsy eh?"
guy: "yeah i heard he caught it off that dude from the tragically hip"