The action of hitting one's erect penis against the inside of a toilet seat when sitting down.
"Using the toilet with morning wood is a challenge... standing up is messy, sitting down results in rim twang!"
by chickitypoo January 18, 2010
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