Fly as in what birds and aeroplanes do, fly as in the insects, or fly as in “your fly is down”?
edit: I mean the word fly (as in its use in language), not the act of flying!
Fly as in what birds and aeroplanes do, fly as in the insects, or fly as in “your fly is down”?
edit: I mean the word fly (as in its use in language), not the act of flying!
I’ll bet you this also has something to do with the terminology for the rain fly on a tent, most of which have the same kind of flap covering the zippers and/or openings.