2 definition by Chromana

Used as a generic blaming tool. When asked who performed the action in question, you blame it on Tia.
It can be used when you don't know who to blame or when you don't want to confess.
This phrase was first made popular in the amirite.net community in August 2010.
Tia was a fake persona created by a member of the website to be used as a scapegoat, but she was soon being passed the blame for other incidents by other members too.

Someone who repeatedly makes typos, such as in an instant messenger or chat room, and then corrects themselves. Particularly when the correction they give is wrong and for a simple word.
Not to be used on someone who "rites liek dis" (Txt tlk) because that is not a typo for them, they were intentionally being retarded.