When someone is saying something that you have either
A) No clue what the fuck they are
talking about, or
B) No interest in it whatsover.
It is basically saying "Shut the
fuck up" without offending the person
talking. And hopefully, they will get the hint and shut the fuck up.
Example A:
"So, if you just take the Rotation Muffler and place it into the X-axis, then you have a complete circuit."
".............I see what you're
talking about."
Example B:
"So yeah, she lost the
baby, dude. She's
heartbroken about it."
"......I see what you're talking about."
"............You're an asshole, dude."