A person is both stupid (e.g. dumb) while also stubbornly refusing to stop being stupid when asked (e.g. Will Tomasini)
I couldn't teach him how to use the paintball gun because he was running around with it between his legs like a dumbass.
by Professional Worder January 7, 2023
Get the Dumbassmug. 
A person who's idol is Stig of the Dump. He loves to dress like a tramp and loves his Stig of the Dump cologne (Which has a scent of shit in it).
The Dumbass Scotsman normally has either a J or a K in his initials. In some circumstances a mixture of the two can cause serious malfunction of the persons common sense.
by wurly_45678 October 16, 2008
Get the The Dumbass Scotsmanmug. by TheDeadInside June 20, 2024
Get the Professional dumbassmug. by Shsbsn January 6, 2024
Get the Dumbassmug. by uncledaddy01 December 30, 2020
Get the Dumbassmug. " data-x-data="{defid: parseInt($el.dataset.defid)}"> 
Get the <.0.5.4.3.4.0.>Music Is Operated By Village Dumbasses Called "Village Idiots On Tints"<.0.5.4.3.4.0.>mug.
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by .0.7.9.7.1.5.3.7.4.6.5.9.7.3.4 May 8, 2025
Get the <.0.5.4.3.4.0.>Music Is Operated By Village Dumbasses Called "Village Idiots On Tints"<.0.5.4.3.4.0.>mug.