A bzurp is the sound made when your
press the lower half of your face into a part of someone's belly, ass
cheeks, arm or any other body part with
large surface mass.
Also called a "raspberry".
The quality of the act of performing a bzurp is rated by the level of "bzurpage". The level of the volume made during the act, along with the duration are the benchmarks used to identify quality bzurpage.