a code used among teens to define a girl's butt in reference to the 3 dimensions on a graph. Z axis is how much it sticks out. Y axis is how tall it is. X axis is how wide it is.
When having sex, move left to right, as opposed to up and down or forward and back, this is most easlily done by laying on a sleeping bag, or any other slidy surface.
In 3-dimensional Cartesian terms, the x-axis is east and west, the y-axis is north and south, and the z-axis is up and down. So the positive z-axis is what's up.
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<.7.9.7.6.>Malcolm <`'`Z`~`a`'`Xis`~`>RIght In The Middle The In Left Malcolm Is Down In The <`'`X`~`Axis>Middle<`'`Y`~`A`xis`'`> To Be Up In The Middle<.7.9.7.6.>
<.7.9.7.6.>Malcolm <`'`Z`~`a`'`Xis`~`>RIght In The Middle The In Left Malcolm Is Down In The <`'`X`~`Axis>Middle<`'`Y`~`A`xis`'`> To Be Up In The Middle<.7.9.7.6.>