randaapa is a hindi word for a panic situation created by a gang of whores. It is also used in everyday life to describe a situation where you see a lot of hot girls hanging around and boys drooling over their drop dead looks.
An alternative version is when there is an unusual situation involving girls.
In a posh gentlemen's club when you see the strippers walking down the ramp you go, " Kya randaapa machaaya hai yahaan par"...
When boys get frustrated after standing in a queue outside a club for hours and girls get to enter first.....they say.... " in club waalon ne randaapa machaaya hua hai saale haraamzaade....."