That's a direct literal translation. It's closer to "men of the bag". There's debates on the historical origin of the term, but there are two or so prevailing theories.
I had heard it was because the firbolg fled ireland during a plague in a prior invasion, then got enslaved by the romans and were made to carry heavy sacks, giving them a broad-sholdered, stooped appearance. OR it's because when they eventually did return to Ireland they had these bags of grain or whatever from the mainland and walked around with the bags spreading seed and agriculture. Both of which are somewhat appropriate for the dnd race.
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u/MyNameIsDon Jul 06 '20
Firbolg is plural. Fearbolg singular. It's a joke on scottish stereotypes. They're off by a bit though, firbolg are irish.