A Shit-year-old is the term for a grown peron who behaves like a child, in a paticularly shitty way. The sort of person who refuses to belive cartoon characters aren't real, claiming that they "exist somewhere".
by Tatianapianist December 9, 2008
Get the Shit-year-oldmug. by YuOfTheNight April 1, 2019
Get the The days of the old republicmug. slang term that teenagers use before meeting up for a sketchy social gathering in a mysterious location
by iimZaach March 7, 2011
Get the Old Oak Treemug. A doctorate program that can be completed in online in 3 years during Covid when it should take 6-8 years and the highly questionable folks who are calling themselves 'doctor.'
I had to deal with a fucking 3 year-old pharmacist today questioning my Harvard Psychiatrists orders the patient has been safely on for 10 years.
by Vivvy12345 April 14, 2021
Get the 3 year-oldmug. by "Takes deep breath" 👏🏻 Boi January 6, 2019
Get the a old sallymug. 
Get the Old potato farming btardmug. Most likely your parents.
by 123van October 24, 2016
Get the Semi old peoplemug.