Top definition
a crescent moon. reference to Lupin in the Harry Potter series who turns into a werewolf at the full moon, thus when the moon is not full, he is lucky.
tom looked up and saw the moon was a lucky lupin tonight
by potter>twilight July 16, 2010
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