A fork of Rural Dictionary
Dipping your finger into a shitty arse to see how dirty it is or into a menstruating vagina to see how heavy the flow is.
I had to give her a dip for diesel to see if she was good to go.
When a diesel engine is rollin' coal and simultaneously spits fire and sparks as well as smoke.
"Dude,I thought that I had killed my truck when it started pulling a Diesel Dragon last night. There was fire and smoke shootin' everywhere."