source: Learn English with Ronnie! 2015年7月27日
quiz here: http://www.engvid.com/expressions-for...
--"Your fly is down or your fly is open." This means on your pants where your little weenie comes out, or where you unzip your pants-zip-it means you forgot to do the zipper up or the buttons up on your pants. Maybe people can see your underwear. Oh, I hope you wore underwear. Oh, god, what could you see? So, one really embarrassing thing that might happen to you is your fly is down, which means-zip-you didn't zip up your pants. So I would say: "Do it up." I don't want to see your tighty whities or your superhero, Superman underwear. Or do I? Do you have Superman underwear? That would be cool. Just do up your fly.
--Huh, my shirt is on inside out. That means that the tag is sticking out and I need to reverse my shirt. So I can say: "My shirt is inside out." So, my mother would tell me: "Put it on properly." Which would mean I would take my shirt off, and put it right side in.
--I've put my pants on backwards. How could...? How could you achieve such a feat? I am pretty spectacular when it comes to getting dressed. So: "My pants are on backwards." And again, you would say to the person: "Put them on properly." Have you ever put your pants on backwards, like not on purpose, by mistake? I've done it. I've ridden my bicycle. I was on my bike, went to the restaurant, went to look in my back pocket, realized my back pocket was my front pocket and went: "Yeah, these are on backwards." That's funny. I hope my fly's not down.
--"Oh, your shoe's on the wrong foot. Put it, put the shoe on the right foot."
--"His mitten is on the wrong hand." Again, we would say: "Put it on the right hand", and the left one, which means the correct hand.
This happens to me a lot. Something has become "untied"-this is an adjective-or "undone". So: "My shoelace is untied/undone." This means the same. So, what you're going to do is you're going to "tie it up".
Maybe somebody at your work is quite fat or chubby and they pop the button their shirt, or they just didn't do up the button and you can see their tummy. Eww, their hairy, hairy tummy. You can say: "His button is undone." or: "Her button is undone." And you would tell the person: "Do it up."
Oh, on the other hand, if a lady says to you... This beautiful lady, Judy Holliday, if she says: "My dress, please undo my dress", you say: -"Yes, ma'am." -"Why, thank you, sailor. Can't do it myself."
