The But-sex. Basically Yaoi in its most graphic form, which though very graphic also ends up being absolutely hillariouse!

you may be watching sensitive pornograph and all of a sudden there is man-cock on the screen and then flashy sequences of them having kinky kinky man sex and all you can do is roll on the floor laughing shouting things like Man-Cock and Penis-hankerchief!

so thus Teh-Butseks is Comic Yaoi.
Best example of Teh Butseks:

When playing Absolute Obiedience (Yaoi dating game) watch out for the Penis-Handkerchief moment, hillarity will ensue, you will understand.
by Mortal February 1, 2008
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