Definitions by Mrs. Gyllenhaal #1

itm 

Acronym meaning "incredibly totally marvelous" or "incredibly totally magnificent" or occasionally "It totally magical", usually used to describe something awesome or amazing

Paul "So how was was Prom???"
Dean "fun"
Paul "How did Maggie look?"
Dean " She looked ITM"

itm by Mrs. Gyllenhaal #1 May 24, 2011