I find “Top 10 Yo Mama So Fat Stupid Joke List” including ‘Yo mama so stupid that she got hit by a parked car’, “Top 10 Yo Mama So Fat List” including ‘Yo mama so fat she put on her lipstick with a paint-roller,' and “Top 10 Yo Mama So Ugly List” including Yo mama so ugly when she died she went to Heaven and God said I didn't creat you,' on an website.
Based on Google Ngram, the word, ‘yo mama’ and its counterpart, ‘yo papa’ came into use in circ 1935 and their currency started to show a sharp rise from around 2000.
Although none of Cambridge, Oxford, and Merriam-Webster English dictionary registers the word, either ‘yo mama,’ or ‘yo momma,’ Wikipedia defines it as the alternative form of ‘your mother.’
However, when ‘Yo mama’ is used as in ‘yo mama jokes,’ it appears to me that the meaning of ‘your mom’ drops off,’ and turns into a generic, any (fat, stupid, ugly, ---) woman-related jokes. Am I right?
Is it possible to extend ‘yo mama (papa) ’ to other subjects such as ‘yo mama (papa) episodes,’ ‘ yo mama (papa) lessons,’’ yo mama (papa) saying,’’ yo mama (papa) blunders / guffes’ than ‘yo mama’ jokes?