D.A.D.
The term means: "Dumb Ass Dog." This refers to a dog that is getting on a person's nerves and because you refer to him as a "D.A.D." rather than calling him a dumbass, it remains a unsuspected, preferential acronym of choice. This slang was created by Bluford and Yogi from the Big V.A.. Rest in peace my people.
D.A.D. by Shaqueezle G. November 9, 2005