A caret is sometimes used to comment on a message above yours on a forum or in a chatroom (See Example One).

Sometimes, another message can be thrown between, causing confusion (See Example Two).
Example One:

Person: I liek big buttz and i cannut lie
Person2: ^ Thanks for sharing.

Example Two:
Person: I like to watch the sunset reading a long novel about romance and shit.
Person2: WHO LIKES ROLLERBLADING IN THE NUDE? I DOOOOOOO!1!!11!one!!
Person2: ^ Ur so hawt

And that's how you use a caret.
by ZCR June 21, 2014
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Using the caret symbol next to a word or on its own denotes irony. It's the equivalent of raising ones brow.
Patrick: Jesus is the one true Lord, get your head outta your ass.
Michael: ^ (caret, or "raise to" symbol)
by Cpt.Oblvious October 27, 2018
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