short for "Thanks In Advance"

mostly used in the software pirate community on Bulletin Board Systems. Pirates would request software and since it may be some time before someone actually uploads it, they would write TIA after the request to express gratitude
Can you please upload a copy of Windows XIII Ultimate Edition complete with serial. TIA
by superjonbot March 01, 2010
This is awkward.
You go to a party, knock on the door, nobody answers, so you walk right in. You go into the kitchen and stand around with your friends, and start screaming "I'm here with the beer!" You wait for the people to start walking in, and you notice you arrived to the wrong house, "TIAAAAAA".
by Hayley Rose August 03, 2011
texting in action. Similar to mia, or missing in action, but refers to a person who, even when in a group, isolates him or herself and texts the whole night.
Arnold: Yo, you know where Lucy is?

Beth: Yea bro, she's tia.

Arnold: Ugh, not again!
by iamabluemonkey July 31, 2011
Acronym for the popular saying 'that-is-all'.
Boy at nightclub: "You have nice jaw bone structure. TIA."
Girl at nightclub: *slaps boy in face
by Jabberwock12 August 07, 2011
A popular Abbreviation meaning "This is Africa".
Also used in movies like Blood Diamond starring Leonardo De Caprio.
I don't sound very cool saying this but, TIA.
by Mustacio August 16, 2007
Tia is an acronyms for This Is Akward.
But it can be used in a lot of diffrent senarios.
1. That conversation was so Tia!

2. "Do these jeans make me look tia?"
by Tia 24 August 16, 2011
TIA stands for Thanks In Advance. It is generally used as an internet and text msg slang.
Please arrange for the book for me. TIA!
by tanamania April 23, 2010

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