A Thimmy is a person with a big heart, a big love for energy drinks and a disturbing sense of humour. They can sometimes perform silly acts such as pulling their pants down at parties or breaking stuff by kicking footballs inside. But in the end he is a Thimmy and he does all of these things with the best intentions.
"Have you seen Thimmy today?"

" Yeah he is out Thimmy-ing"
"Oh dear"
by bigcatfromheaven October 22, 2018
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Slang for taking a thumb in the bum, maybe even more depending on your preference.
Person 1: Hey bud, you look like life just gave you a solid flesh tube thimmy.
Person 2: I swear to you man life has rightfully fucked my own week.
by Tfyoulookingat July 1, 2021
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