the physical act of defecating, going number 2, shitting or more specifically: the movement of one's bowels resulting in the excretion of fecal matter, typically in a toilet.
Ciarra took matches and spray with her to the bathroom because she was planning on scrunching a grumpy.
A sex act whereby you place munch (food) on top of the penis and proceed to give a blow job. The scrunching is the face when the cum mixes with the much
A was with this girl last night, got some whipped cream and we was munchy scrunching