i understand what qi gong is. nei gong is external exercises or ‘hard’ qi gong (please correct me if i’m wrong on that). and what’s wu gong? someone once told me it was translated as ‘inside strength’ or ‘inside force’, is that correct as well?
You forget Lian Gong and Wai Gong
Just adding a little more to your confusion 
Even though I´m familiar with english names of different types of qi-gong I´m not that familiar with those in chinese.
It´s a complex language (just like you would not know) and probably offers various translations,but how about "martial exercise (gong-chi-gong) ? wu-martial.
Wai=external
Nei=internal
is wai the same as wu?
what’s lian?
i do understand chinese is a complex language, castlevania.
Wu Gong is a Shuai Chiao specific term.
Wu is the sound you make when your instructor chooses someone else to demonstrate a new throw (as in Wheew, I’m glad he didn’t pick me.)
Gong is for the ringing sound in your head when you hit the floor.
LMAO at Water Dragon!:eek: 
so then would wai gong is SC related too? as in the sound you make when you’re the one he picks (why??)
No, that’s when you get thrown real hard, hear you’re head ringing like a Gong and say “Wai me?”