A clueless or ignorant person with a narrow point of view.

Friend: Hello, how ya doin?
That kid: *shrug*
Friend: Well uh... we have English class together, right?
That Kid: *shrug*
Friend: CAN YOU PLEASE STOP SHRUGGING
That kid: *shrug*
Friend: ...You wanna come to my house?
That kid: HELL NAH

When you just dont give a fuck.

To ignore something, not let a problem get you. An effective and mature thing to do when its a situation that can't hurt you and/or is beyond your control.

to brush something aside, to deny it or minimize it with a shrug

It's use dates back to Kanye West during the now famous '2009 MTV Video Music Awards' before handing the microphone back to a stunned Taylor Swift.

The ultimate conversation ending act. It is the body's verbalization of the word 'ummuuhunmhh'.

The sound you make when you say "I don't know" without opening your mouth and running the words all together so it sounds like "iounknow'

When used online must be preceded and super-ceded by asterisks...

ex. *kanye shrug*

To be used only when total finality of the conversation is needed with no further explanation.

exclusive bar in east new york, brooklyn. also a phrase used to reply to text messages you are unsure of how to answer, are drunk, and are shrugging and hanging out with a dog. first you send the shrug and dog emoji, and then you shrug dog.