Every five years

• Desire sex really regularly (every five years)
• Used for purification
• Every five years, there's passion with return of the French right

Douglas Harper's Etymology Dictionary Word definitions in Douglas Harper's Etymology Dictionary
"pertaining to purification," 1530s, from Latin lustralis , from lustrum (see lustrum ). Hence, also, "every five years" (1781).

Wikipedia Word definitions in Wikipedia
Lustral may refer to: Sertraline (also known as "Lustral"): an antidepressant Lustral (band) : an electronic music band