an adult who acts immaturely and well, childishly. man children have lots of overlap beetween neck beards. typically they live with their parents and are unemployed, but there are exceptions. (though most who are employed are probably flipping burgers) they often have horrible social skills as well. man children often are obsessed with some kid's cartoon or pop culture stuff. they fill their rooms with toys, action figures and more. overall, man children are leeches to society. just like actual kids. even kidnapping them is harder to do than with children. you have a tub of lard to deal with after all. thus you need to upgrade to adult sleeping to get the job done.
mother: my god! clean your room! you have no job. you could at least clean your room!
man child: no! i gotta watch the new teen titans go episode!!!
mother: you are such a man child, son!
man child: no! i gotta watch the new teen titans go episode!!!
mother: you are such a man child, son!
by dight November 8, 2022
"Hey, Ted, wanna Man up and Go Vols tonight and get sloppy?"
"Nah, sorry, Matt, I saw that pathetic press conference - I'd prefer to keep my dignity."
"Nah, sorry, Matt, I saw that pathetic press conference - I'd prefer to keep my dignity."
by JEERTR January 7, 2013
by gorg60210 April 18, 2021
WOW! That was some crayzie ass shit man.
by Mike Dingez SCM March 8, 2011
by Twin07 July 18, 2021