A Barotrauma Moment occurs when the game mentioned, Barotrauma, is either:
A: Broken in some fashion which would be easily rectifiable, yet isn't
B: Doesn't work on one occasion, and then magically fixes itself on another
C: Is limited by its base code or limited by the developer's choices in hardcoding
Modder: "Man, my modbroke again! ..Wait, it isn't? Its reading my package as valid again!"
2nd person: "That's a Barotrauma Moment"
Someone or something that bites your ankles.
To a postman, an ankle biter is often known as a dog.
To an adult, an ankle biter may be a toddler.
To hikers, an ankle biter is sometimes a tick.
And so on.