FIFO

A term used in various industries (computer programming, food service), which stands for "First In, First Out".

Within the bounds of Amtgard, one would presume a FIFO fighter to charge off by themselves (first in) and promptly die (first out).

One might also conclude that such a player hasn't been at it very long, or they would know better... making this a form of Newbie Fu. See also Ditch Bitch.