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A type of erection a paralyzed male gets. It's not fully hard (usually) and will frequently have a spasm causing the erection to bounce up and down.
Girl: (to paralyzed lover) Why's your hard on dancing, does it want it?
Guy: Fuck no, its just a damn chaz spaz.
by dylan w March 20, 2008

Words related to chaz spaz

boner erection hard on spasm throbber