The adjective form of
moron. To do
something which only someone having the qualities of a
moron (someone with an IQ of 45-59) would do.
1) You tried to dress yourself in
duct tape? Steve, that was moronic.
2) You tried to drink the sprites in Super Mario Brothers? Steve, that was moronic.
3) You
posted your MySpace
picture on UrbanDictionary.com? Steve, that was moronic.