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1.
The art of wasting a stupid amount of time on something so unimportant.
Chris spent 2 hours arranging his browser bookmarks into categories.

Chris spent 30 minutes making an email signature.

Chris spent 15 minutes putting his shoes on to go out.

Chris spent ages lining up wires so that they don't cross each other.

All the above would result in..

"Chris has been homoing again!" or "Stop homoing and hurry up!!"
by ninja puppy May 20, 2010
 
2.
When people are waiting to watch a movie and the person with the movie will not get off the phone.
If Jim Romanko would stop homoing and put that cell away we could watch the movie
by JimRwfrs May 02, 2008
 
3.
The act of being a homo, usually referring to gay sex.
Michael and Zack were homoing in the bathroom.
by DeathSpawn11 November 30, 2008