I was reading the most common freerolling situations in holdem, but I have no idea what is being asked. What is Freerolling?
Google wasn't any help (hit too many free rolls vs. freerolling), and we didn't have any answers here that I found.
It's a term used to describe a situation in which there is no more downside risk involved for one or more active participants, only upside positive outcomes can be realized. A "shot to nothing" is a similar expression.
In the example from the question you link to, both players currently have the best hand, an Ace-high straight, yet only one player also has a flush draw. That player is freerolling as he can't lose (no downside risk) but can still beat his opponent by improving to a flush (upside).
In the context of poker, a freeroll is an opportunity to play with no cost, yet there are still potential rewards. Hence, any similar situation could be thought of as a chance at freerolling.
Is where a player cant lose a hand against his opponent, the worst scenario is a chop, for example
3d 8d Qs on the flop
and the freerolling player has Qd 10d and his opponent Qh 10h whatever card it comes freerolling player will chop or win with any diamond