What does a lesbian bring on the second date?

The joke “What does a lesbian bring on the second date? A U-Haul” plays on a cultural stereotype within the lesbian community that relationships tend to move very quickly towards commitment, commonly referred to as “U-Hauling.” The term comes from the brand name U-Haul, a company that rents moving trucks and equipment, which in this context represents the idea of moving in together. The humor lies in the exaggeration that a lesbian couple might start cohabiting so swiftly that a moving truck is needed by the second date, thus poking fun at the speed at which some relationships progress.