The art of redefining words until you get an interpretation that suits your intentions.
I started an argument with him about whether or not it was raining. Then he used Rozenism to make it seem like getting wet from water falling out of the clouds actually meant that it was dry.
(Latin) Literally "Not Worth a Rat's Ass," the slogan of the Tunnel Rats, who were either U.S. Army combat engineers or infantrymen of small stature who cleared the extensive tunnel network of the Viet Cong during the Vietnam War.
Willy wore a patch with the saying "Non Gratum Anus Rodentum" on his field jacket. This indicates that he was a Tunnel Rat during 'Nam.
Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.
A sunburn or suntan focused on the left arm. It is caused by the left side of the body being the only half that gets exposed to sunlight while driving. Presumably, it would be located on the right side of the body in countries where they drive on the left side of the road.
I had a trucker's tan after driving for 10 straight hours on a sunny day.
British slang for a scientist or technical expert, esp . when the speaker is not certain of the expert’s specific field of study. Not necessarily derogatory, but typically used by persons without a technical background. In the US, the equivalent would be “egghead”, “squint”, or “geek.”
Origin of the word is unknown. Started sometime in World War 2. Given the typical evolution of British slang, could easily have started because what these experts did was confusing or “baffling” to the common person.