Ningstas are people who are both ninjas and gangstas. Just think of gangsters with a ninja mask and a ninja shirt with pants down to his knees rapping.

A phrase to describe someone who is cognitively degenerating. Synonym of "going off the deep end". Can have varying degrees of severity.

Reference to the song "Hey You" by Pink Floyd. The line "and the worms ate into his brain" makes no sense in an otherwise linear and literal narration throughout the lyrics.

a self proclaimed gangsta that watches anime, naruto, at night and says he will pull out a gun at day.

beware as these types of people are really touchy and just stupid in general speaking screwed up English.