"Under a gibbous moon"
Waxing gibbous moon
Creative Commons AttributionWaxing gibbous moon - Credit: Opoterser

A gibbous moon is lunar phase during which more than half, but less than all, of the visible hemisphere of the Moon is illuminated by sunlight. The gibbous moon occurs between a full moon and a half moon, or between a half moon and a full moon, as the moon is waxing or waning.