trekspert
A person who believes they are an expert in all things related to multi-day hiking or Star Trek
Camping with the trekspert here who has all the tips on how to survive in the wilderness, or in turn will just activate the communicator and get the Enterprise to beam us all to safety
trekspert
Someone who knows everything about Star Trek, esp. The Original Series (TOS).
That mactrek guy is really a trekspert.