DLTS stands for Driving Like Totally Stupid. It occurs when people are so stupid that they don't actually need to get drunk to mess up; therefore differentiating from DWI. DLTS ranges from mild to severe; it depends on the IQ or current mood of the driver.
Johnny: See that guy over there? He was arrested for DLTS. He was so stupid he didn't even need to be drunk.
Fred: God, what an asshole.
Acronym - short for Drunk Loud Talker, one who's voice volume increases by 15 decibels or more upon consumption of alcoholic substances. Pitch and tone can remain heightened or flat, however rate of delivery will increase as well.