and stuff
Synonym discussion
Sense: idiom/1
All five phrases signal that a list could continue, but their formality levels differ sharply. 'And stuff' and 'and such' belong to casual conversation — you would use them with friends, not in a job application. 'And so on' is neutral: fine in most speech and in essays. 'And the like' tilts formal and appears more in writing. 'Etc.' (from Latin 'et cetera') is the shortest and most common in note-taking and academic prose, but it sounds stiff when spoken aloud. For example, 'Bring snacks, drinks, and stuff' (friendly text to a housemate) vs. 'The course covers syntax, semantics, and so on' (course description) vs. 'Factors include age, income, education, etc.' (research paper). Choose according to your audience: use 'and stuff' only where you would use slang.
Etymology
'And stuff' is a conversational shortening that emerged in informal English during the 1800s. The word 'stuff' (from Old French 'estoffe' meaning 'supplies' or 'material') had already acquired a vague 'miscellaneous items' meaning by the 1600s. Pairing it with 'and' after a list created a handy catch-all phrase — 'and similar things I am not bothering to name'. It remains firmly casual today, rarely appearing in edited writing.