African American Vernacular English.
'Yo' is used in greeting.
'Homie' is used to refer to a friend.
Phonologically, 'th' is pronounced 'd' as in 'dat'.
'g dropping' is also common.
Gramatically, copular verbs do not exist.
E.g. 'The dog barking' as opposed to 'the dog is barking.'
There is also frequency use of 'ain't'.
Also commonly used in double negative, such as 'ain't seen nothing.'