Much like being Billsexual, although there are far fewer Tomsexual males than there are Billsexual males.
We are all Tom sexual
Guy: Hey, so what do you say you and I go out this weekend?
Girl: Sorry, I'm Tomsexual.
Guy: What does that mean?
Girl: It means get a german accent, some baggier clothes and dreads or cornrows, learn to play the guitar, and *then* we can talk.
Tomsexual behaviour is often combined with an addiction to Thomas and a constant desire for his attention. The tomsexual person is termed a tomaholic.
Tomaholic: Ew. Get away from me. I'm tomsexual and you're not Tom.
Thomas: Hey sexy.
Tomaholic: Thomas! Kiss me! I love you!