A term used by black slaves during the slavery era. "Massa" is another word for saying "master". It became a trend on TikTok during a certain period. It was funny until non-black persons starting using the term.
When an insignificant person either says something that no one cares about or says something completely out of context. This expression is also used to make people who don't get references/jokes shut the f*ck up when they don't add any valuable input to the conversation.
Person 1: *tellsa joke*
Person 2: *says something retarded completly unrelated*
Person 1: stfu massa
When his male staffer that he should be "chasing" after the bridesmaid at the wedding party, the Massa-fracker, representing the state of NY, suggested instead that he should be "fracking" the male staffer, before groping him and tossling his hair.