Booma in the arabic language means "OWL". Yes, like the bird. But it's slang meaning in arabic is: Someone who is being and absolute buzkill.
For example, when you're out with your friends partying and talking to girls, having fun. There is always that one girl who is the buzzkill of the group. She is always pulling her friends away, she looks miserable, with a pissed off look on her face, basically watching all the fun, but not having any. This girl is a "BOOMA"
when whilst you are saying something, you hold your the pointer and middle fingers of yoru hands up in the air curled as if to make quotation marks as if to make the thing you said sound peculiar or strange. also used as a taunt.
Martha: wow, its been six years since i have seen you, whatever happened to your (air quotes) band?
Fred: hey! we turned out some really good stuff on our first CD!
Martha: fred, your (air quotes) band was only six guys and some italian stew pots.