by Da fuck do you care? August 25, 2004
 Get the jagoffmug.
Get the jagoffmug. by brownie_8765 October 1, 2005
 Get the jagoffmug.
Get the jagoffmug. A jagoff is the worst thing one can be called in Pittsburgh.  Closely related etymologically to jerkoff but much stronger.
by d156156156 February 18, 2008
 Get the jagoffmug.
Get the jagoffmug. by Nate Maier August 13, 2016
 Get the jagoffmug.
Get the jagoffmug. "Jagoff" (sometimes "jag-off") seems to have originated in Pittsburgh but is also recognized in the Midwest as slang for an inept, feckless, contemptible, or generally worthless person, a loser, a "schlemiel."
The term is almost certainly derived from the verb "jack off" (through noun "jack-off") as in "masturbate," but somewhat like the British use of "wanker," it is usually not a direct comment on self-pleasuring, but more of a general term of contempt or deliberate abuse. Like "wanker," "jagoff" is somewhat vulgar and not to be used lightly, and avoided in cultivated speech, but is recognized by all in the regions in which it has currency.
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The term is almost certainly derived from the verb "jack off" (through noun "jack-off") as in "masturbate," but somewhat like the British use of "wanker," it is usually not a direct comment on self-pleasuring, but more of a general term of contempt or deliberate abuse. Like "wanker," "jagoff" is somewhat vulgar and not to be used lightly, and avoided in cultivated speech, but is recognized by all in the regions in which it has currency.
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The book KILLER CLOWN relates that John Wayne Gacy became especially flustered or angry when called a "jagoff." So the police deliberately used that term to throw him off-balance during interrogation.
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by al-in-chgo August 18, 2010
 Get the jagoffmug.
Get the jagoffmug. Jagoff- 1.Famous word used by Joe Pesci in the film "Casino". 2. A word used by Italians or North Eastern Americans to describe a Jackass or a Jerkoff. 3. A stupid fucking oaf.
by Master JP March 24, 2004
 Get the jagoffmug.
Get the jagoffmug. by southsidesmitty September 25, 2004
 Get the jagoffmug.
Get the jagoffmug.