The process by which one sharts themself while wearing a thong, thus "splitting" the feces in half.

When a chick wearing a g-string or thong shits herself, splitting the log neatly lengthwise.

Verb. The act of passing a solid excrement through the line of a g-string or thong underwear.

When one's partner squeezes out a turd while one is actively engaged in anal intercourse so that one's penis happens to divide said turd much in the same way that one splits a log of wood.

Talking a shit whilst wearing a thong effectively cutting the shit down the middle.