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Abbreviation for Ignoring All The Orders, a rebellious theme that can also be used as a positive reinforcement verb and/or adjective in a certain situation/event.
Guy One: Yo bro, I brought this girl over last night for some " Netflix and pizza".
Guy Two: Aye, that's IATO fam


Guy One: Yo that girl over there is so IATO

Guy Two: Bro that's the nicest ass I've seen all year, I'd definitely give her a go
by beauty mclover January 07, 2015
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