look up any word, like ratchet:

1 definition by prophet101

Diesel unit. A particularly masculine lesbian or butch dyke. The D-Unit is easy to spot with her fearsome concatenation of facial and/or body hair, and rough hewn wifebeater heavily stained with hydraulic fluid or other petroleum product.
Yo D-Unit, you is looking like one butch, motherfucking rugmuncher today.
by prophet101 September 19, 2009
3 4