This is a man that is over 30 years of age that spends his time playing video games online. This person can be very responsible individuals but at times can act just like a kid thefore resulting in the term man kid.
A man kid can be spotted playing Call of Duty, Madden NFL Football, etc. They also like to wear headsets and refer to the time spent online as "gaming."
by Wife of Man Kid November 18, 2011
Some immature dumbass kid, probably around the age of 9 or 8 that expresses his love of Spiderman in his clothing. Wears a Spiderman T-Shirt, blue sweatpants, and Sketcher Light Up shoes. Most likely watches Cartoon Network, and plays with Pokemon, Bakugan, and Yu-Gui-Oh.
Tabatha: OMG my litte brother is such a Spider man kid, he keeps on playing with Bakugan!
Tiffany:OMG like I know right? Like he has a Spider man shirt that says Bang! on it. I mean like really?
Tabatha:IKR?
Tiffany:LOLZ
Mark: REPTAR HAS TIMES FOUR JAW STRENGTH AND PLUS FIVE DEFENSE!
Bobby: NUH UH, MY GALANGANASH HAS PLUS SIX STOMPING ABILITY AND PLUS TWENTY DEFENSE.
Mark: Well your GALANGANASH IS NO MATCH FOR MY: UBARBEAR. UBARBEAR GO! WATER TORNADO ATTACK GO!
Bobby: FML
Tiffany:OMG like I know right? Like he has a Spider man shirt that says Bang! on it. I mean like really?
Tabatha:IKR?
Tiffany:LOLZ
Mark: REPTAR HAS TIMES FOUR JAW STRENGTH AND PLUS FIVE DEFENSE!
Bobby: NUH UH, MY GALANGANASH HAS PLUS SIX STOMPING ABILITY AND PLUS TWENTY DEFENSE.
Mark: Well your GALANGANASH IS NO MATCH FOR MY: UBARBEAR. UBARBEAR GO! WATER TORNADO ATTACK GO!
Bobby: FML
by APERSONWHOHATESKIDSLIKETHIS February 18, 2011