How to Port Forward Metasploit

To be concise - I want to be able to use Metasploit after getting meterpreter on the targets device that is outside of my network. Now in this situation I do not use 0.0.0.0. (Or Private IP) and set my Public IP adress as my LHost correct ? From there I have no idea how to forward incoming data from my target through my router to my Linux device.

I found Metasploits "portfwd add" option on Offensive security but am still very confused.

How do I port forward my targets data to my laptop?