Definition

An acronym meaning 'on some nonchalant shit'—the digital equivalent of a verbal shrug that lets you say something ridiculous while pretending you're not serious about it. Perfect for plausible deniability in group chats.

Example Usage

OSNS but I think pineapple actually belongs on pizza.

Source: Urban Dictionary (https://www.urbandictionary.com/define.php?term=osns&defid=18525710)