"Dumbbell Indemnity"
Season 9, Episode 16

Moe's on the prowl for some female companionship, so he and Homer hit up the local discotheque. Like the rest of us, Moe knows the merits of a dope kit to wear out when you're looking to meet a lady, so he dusts off his most formal look for the occasion. Unlike Usher, he isn't able to make or find love in the club, but the purple tux does attract the eye of the lovely Renee. Mission: successful.