Definition - What does Diesel Dyke mean?
A diesel dyke is term used in some lesbian circles to refer to a lesbian who has a masculine, or "butch" look and aggressive demeanor. She is likely to take on personal qualities that are more associated with men, such as aggressiveness. She may also be referred to as a bulldagger.
Kinkly explains Diesel Dyke
The use of the word “diesel” to describe a very masculine lesbian may stem from an association with heavy equipment or a big-rig tractor/trailer. The term is also typically used to refer to a larger person.