SO I AM USING THAT EXPRESSION CORRECTLY. I did know it was that but I didn't know the story behind it.
Sadly, I only use it on my friends who ask me in public of what my sexual preferences or some cases, they are weirdly thirsty and has no shame what so ever. Examples like blurting out dangerous words that can get them sued for sexual harassment. Seriously thou. Even we are taking a course in Mechanical Engineering where it's very rare to find a female student taking it, at least try to be decent at least and have some common sense in what your saying. You guys are the problem why it's so rare to find a female students in ME and why we are usually seen uncivilized in social gatherings.