Dikes or pair of dikes also refers to diagonal cutters. (Look like pliers with blades instead of jaws at the end) They are used for cutting sheet metal, also, wire cutters are also called dikes. Can also be used as a verb: Dike off the corner of that piece of steel, or, dike out that part of the circuit.

My wife is bi and it always messes with her when I say it. Just a trade term.