,,,

Etymology
Originates online. Derived from …, likely by imitation of an initial misspelling, since the . and, keys are next to each other on most keyboards.

Punctuation mark

 * 1) Indicates a pause.
 * 2) Indicates trailing off at the end of a sentence.
 * 3) Indicates a hesitant or confused tone.
 * 4) Used to separate clauses, phrases, or universally to end sentences.
 * 1) Used to separate clauses, phrases, or universally to end sentences.

Usage notes
This term is almost always used online, having originated likely as a joke.