A nickname to suggest one (a male) is very into having sexuall thoughts about other men. Can also be used to say that a certain male has a fetish for one particular
name, and
will tend to have sex with people with this
name.
You think one has gay thoughts about
men, you then call them "Tomo".
If one tends to spade and have sex with
girls only the same
name. For example 'Hannah', then you call them "Tomo".