A sexual act
almost equivalent to the
oral sex act "the blowjob", except for the fact that the person performing the
fellatio make a sucking noise, such as a vacuum cleaner would make. Sounds include: "Shhlck", "Slllllluuuuuuupp" , etc.
Fred: Yo man, Daphne and I had the best sex last night!
Shaggy:
Like, did she give you a blowjob man?
Fred:
Dude, she gave me a freaking reverse vacuum cleaner!
Shaggy: Zoinks! That's
like, totally awesome man!