Where I live the saying is "a coon's age" referring to a raccoon instead of a dog. I also had to look up "bilboes". This is almost archaic English and you will not likely ever hear any of it. You may hear "blamed" in a movie as an old way of expressing consternation. I guess now people just say "forever" as an exaggeration of time. You kept me waiting forever! It took forever to get my food! "That darn storm kept me locked inside forever!" J

Hello! Wow, you certainly found yourself a tricky sentence! Here's what I was able to find: -gale: a strong wind -line gale: a strong wind that continues for several days -blamed (as it is used in this sentence): darned. This isn't really something we would say anymore, but it's basically a way to emphasize how annoying the wind is. Today you might replace it with an emphatic curse word -bilboes: shackles, or something kept around the ankles of a prisoner so they cannot move far If you put that all together, it seems that this sentence is saying that this particular wind has kept the speaker of the sentence in the same spot (like a prisoner in shackles) for a very long time ("a dog's age"). I believe this was written by a sailor or someone on a boat so a consistent wind going in one direction could create a frustrating problem. English is such a wild language :) Hope this helped!

blamed here probably means 'darned' or a polite way of saying 'damned'. A dog's age does mean a very long time, it is an idiom. Generally refers to a period of time roughly equal to 10-15 years, but really just means a long time. The term 'line gale' refers to a storm that has continued for a long time, but I have honestly never heard the term before. I have no idea what 'bilboes' means.