Having sexual preferance to machines. A term commonly used to describe PC owners.
"Okay Eddie...what are you, you don't seem to enjoy being heterosexual, and homosexuality is hopefully out of the do own a impressive ammount of hentai. Are you..Suisexual? Or..perhaps, like most pc owners, mechasexual? Just wondering"
by Krab July 21, 2003
1. Romantic and/or sexual attraction or behavior between robots, androids, or sentient machines.

2. The desire to have sexual relations with a sentient machine.
"I would love to have sex with a robot." "You are a total mechasexual."

"Mechasexuality, it's like five gundams having sex."
by SinisterSound August 25, 2011