Top Definition
a sign or any trace that math heads or the math club has been in the room. Usually sighted as long complex problems written on the board and the only thing you know about it is that a "dot" refers to multiplication. Sines of course is refering to the type of line that is to measure a wave.
-walks into home room-

tim: look at the Gang sines
matt: jesus...they are good
tom: 42..the answer is 42 not the square root of pi times 27 cubes....gosh...idiots
by history753 February 23, 2005

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