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1.
Adj. A derogatory slang term used to describe someone (usually hetrosexual) who is acting homosexual (or gay) RIGHT NOW. This word cannot be used in the past or future tense.
Frankie, you're touching Kevin's butt? That's homatic!

Jordan, the way you are looking at me is very homatic, please stop.
by Jamie Hush September 12, 2006
 
2.
Being or in the state of being homosexual. Other words may include: homo or gay. This is sometimes used as a way to put others down.
"Quit being so homatic." or "He's so homatic." or "Your so homatic."
by Rosemary White September 05, 2008