also known as l33t is a language used among cholos gangsters or ghetto people. usually never understandable
it consists of replacing:
As with 4s
Es with 3s
Ss with 5s or $s
Os with 0s
Bs with 8s

Ls with 1s
Is with !s
Hs with #s
Gs with Qs
YOUs with JEWs
THISs with DIS
and sometimes adding additional letters to a word, and capitalizing some letters and some not.

(n) an incoherent series of letter, number or symbol combinations used to send text or email messages that are impossible to comprehend.

Someone from jail calls you and knows there is no money on the phone and leaves a ghetto text instead of their name so you receive a short message.