Jagoff is a derogatory slang term from Pittsburghese that refers to a person who is a jerk, stupid, or inept. It is commonly used in the Pittsburgh area and has roots in the northern British Isles, derived from the verb "to jag," meaning "to prick or poke."
A jagoff is a jerk, idiot, or really any kind of irritating or unlikeable person, not unlike douchebag. It’s closely associated with the city of Pittsburgh, ya jagoff. (Slang dictionary)
Here are some ways to best describe a JAGOFF.
Although Trump is the Commander-in-Chief, his irrational and at times bizarre and disturbing behavior is so counterproductive that it seems that military officials reportedly kept him out of the Situation Room during a high-stakes rescue mission in Iran due to concerns about his volatile demeanor. Translated into Pittsburghese, because Trump is such a Jagoff, it was best to keep him away from making any decisions that could affect the lives of the Troops. (Military Times)
Trump’s major concern has always been how to make a profit, no matter who else might lose. His greed is his oxygen. Because the only established goal Trump seems to have with the War in Iran, Trump has been JAGGING OFF investors, with his on-again, off-again declaration of victory or a ceasefire, or the end of the war. One might wonder what this JAGOFF is up to:
Trump's inconsistent messaging regarding the war with Iran appears to be a strategy to manipulate the markets, particularly in response to fluctuating oil prices. Analysts suggest that his announcements often coincide with significant market movements, indicating potential insider trading and market manipulation. (New Republic)
Trump ain’t the only Political JAGOFF, currently floating in the Washington DC toilet, actually, there is a major JAGOFF from the Pittsburgh area, who also deserves his cred as a full-fledged JAGOFF, and that is PA Senator John Fetterman. This JAGOFF has voted to confirm a vast majority of Trump’s personal picks as JAGOFFS, and Johnny Boy continues to ignore the wants and wishes of the vast majority of Pennsylvanian constituents who thought that by not voting for the JAFOFF Dr. OZ, they were going to get a real ally!