these are lesbians a.k.a "butch" that have short hair and are very manly. they are usually large and scary but can also be smaller in stature. some even have mullets and wear their ovaries on the outside in place of testicles.
variations such as bull dyke.
in comes john all beat up.
jeff: holy shit john what happened to you?
john: i saw this manly lesbian and called her a deisel dyke. then she proceeded to beat 7 shades of shit out of me.