When a female, lesbian or not, has extremely short hair (usually a crew cut) and spikes it up. To be a true dyke spyke, it should be easy to mistake them from the back as a guy.
Jane's not a lesbian, but she has a dyke spyke
by Fuckofffucker November 02, 2006
any shiv made by a female inmate
I heard Betsy has a dyke spyke i'd stay out dat bitches way
by dkallday October 16, 2009