Lament Configuration
A puzzle box that opens the gateways to hell, from the "Hellraiser" film series.
Leap Day
A sort of holiday that only occurs every 4 years, on a leap year. Celebrated February 29th (when there is one).
Leatherface
A person who wears masks made out of human flesh. Leatherfaces are docile and weak creatures who live with demented relatives in the state of Texas (and sometimes, California).
Mardi Gras
AKA "Fat Tuesday", the day before Ash Wednesday where people gorge themselves before Lent, and also an excuse to party hard. Particularly notable in New Orleans, celebrated 47 days before Easter.