Top definition
The action of motorboating between the buttcheeks.
I motorboated her boobs last night. Oh yeah! Well I did a mudder boat in her ass!
by The J-Radman June 22, 2007
Mug icon

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug
2
The act of taking a shit on a woman's chest, then pushing one's face in between the shit covered ample breasts, and rocking one's head side to side while making a rapid lip moving motorboat engine sound.

Similar to a motorboat with the addition of the feces.
Did you motorboat that girl with the big tits?
No man, I had the runs so I did a mudderboat instead!
by Rok Mriscan August 22, 2007
Mug icon

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug
3
When you perform a motorboat between a girls ass cheeks and she has diarrhea
But this chick was so hot last night I gave her a Mudderboat. The corn was delicious !
by Starkastic June 30, 2016
Mug icon

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug