Curry is a popular sauce in Asian dishes, its a fish paste with chili and other spices added.
Curry has a strong smell, which if you cook with curry, the smell with remain on your hands even after you wash them.
Curry is most popular with Thai dishes. Though other Asian countries use Curry as well. The smell may not be that pleasent to some people, and its quite strong. But cooked in a meal, such as Golden Curry Crab, with sliced onions. Its a great meal if you like sweet heat.
Curry in english terms is generally called fish paste, which has links to Ketchup.
The anciant Chinese used a condiment from fish paste, which the English in old Europe made a condiment from tomato paste, more pleasing to old English mouths than the Chinese version, the Chinese name was similar to Ketchup, and why Ketchup is the popular condiment name used on everything from burgers to ziggly fries.
The link to fish paste is only one theory out of several however as to how Ketchup in its modern name surfaced. The Chinese theory is from kôe-chiap, a product from fish paste.
The first English referances to the word were in the late 1600's referring to an Indian sauce.
After Heinz, Ketchup is the common condiment used on everything from burgers to ziggly fries.
Curry might have a strong smell to it, but if you like spice and like seafood, its very good.
Person1 at work lunchroom: Wow, that Asian person just heated up something that smells horrible! I pity that microwave!!
Person2 at work lunchroom: Its Curry, and its actually quite good, if you stopped eating pizza and fries from the work cafe every day, you would not have such a huge butt you burger butt.