Since I couldn't post the link in my status. The definitive glossary of modern US military slang
Man Love Thursday: Soldiers use this phrase to half-joke that on Thursdays in southern Afghanistan men customarily have sex with each other so that they will not be distracted by lustful thoughts on Friday, the Muslim day of prayer. Sexual relationships between boys and men are notorious in Kandahar, but the stories of Man Love Thursday are likely apocryphal. A regional proverb goes, "A bird flies over Kandahar with one wing covering its butt."