The way the cool hip kids type 'shrug' or instead of searching shrug text emoji on Google and copy and pasting ¯\_(ツ)_/¯ on forums.

Signalling to another via the medium of text the fact you are carrying out an action, in this case, the movement of raising the shoulders, which highlights the point you are basically saying 'I don't know' or 'whatever' but in a non-verbal manner.

To raise your shoulder and then lower them to show that you do not know or care about sth:

(n) used to verbally describe someone that is completely irrelevant

A SH-oulde-R h-UG (shoulder hug) for your neck.

A very bad toupee. - Short for SHitty RUG.

Shrugs are all the rave among teenage girls. These alleged pieces of clothing provide neither warmth nor coverage. It also fails to increase the perception of chest size. The title derives from the action spurred by a girl wearing it. You shrug because you have no idea what it is for.