In poker, 'pass' means to fold. You give up on the hand, you know it is the worst and you know you cannot bluff your opponent out of folding a better hand. You are done with it, you 'pass', you fold.
Other than this, i cannot think of another definiton, which has not been covered already.
I too am bewhildered.
Some people say some funny things, different terminoligies and phrases, dialects and translations.