A fork of Rural Dictionary
To have intercourse with a particularly filthy girl (in reference to the fishy smell of an unwashed vagina). When used as simply low-tide, it can be used to describe anything that's filthy.
After low-tiding with the scummy hooker, Joe decided to visit the doctor to make sure he didn't catch anything.
The lesbian who plays the role of the man in sex. Bull dog refers to their tendency to appear angry or viciously masculine.
I thought it was just a fat guy, but it turned out to be a very hairy bull dog dave