Top definition
A childhood word for penis. Plural 'twillies'. Origin may be from Scotland.
Used by boys (in our family) in place of penis... so come up with a sentence yourself!
by Dr. Lagina April 25, 2005
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