Grumpy Munchkin 

A woman whom is taking a dump sitting on the toilet, while at the same time has a man standing in front of her for whom she is providing oral pleasures

The woman taking a shit became a grumpy munchikin when i dropped my dick in her mouth.

Grumpy Munchkin by hollowbob September 9, 2004

Grumpy Munchkin 

Where a woman is taking a fat ass shit, whilst she is being eaten out. Similar to the Blumkin but the roles are reversed.

Come on in here baby and give mama a grumpy munchkin. Don't let that tongue slip!

Grumpy Munchkin by D-Dogg77 January 28, 2010

Grumpy Munchkin 

Much like a Cleveland Steamer or a Hot Carl, except instead of shitting on your partners chest, you shit on their forehead

My girlfriend said she wanted to kink it up in the sack so I gave her a grumpy munchkin last night.

Grumpy Munchkin by munchkinator January 11, 2010

Grump Munchin 

The angry response to licking your girlfriend on demand. Usually because the licker has somewhere to go (i.e. a job, a meeting, watch football on TV.

Sorry I am late, but I had some grump munchin to do before she would let me leave the house.

Grump Munchin by anonymous January 5, 2023