Tangent Line
Mathematically speaking, a tangent line to a curve is a line which would coincide with the stream of piss you would create if you were trying to pee on a toilet that was shaped like said curve, at 3 am while trying not to make noise.
-Okay kids, does anyone have any questions regarding tangent lines?
-Yea I don't get it.
-Then get the fuck out of my class you little cunt.
-Yea I don't get it.
-Then get the fuck out of my class you little cunt.