Dyke or Dike may refer to: Dyke (slang), a lesbian. Dike (construction), either a long wall or bank built to contain water or enclose or separate land, or the ditch from which the material was dug, or the combination of the two Dike (geology), a subvertical sheet-like intrusion of magma or sediment Dikes, diagonal pliers, a hand tool used by electricians and others Dyking out, a slang term for a uniform or dressing assistant at Virginia Military Institute and other military schools or coll… (More on Dyke)