In North American lesbian popular culture, the term U-Haul (named after the brand of rental "move yourself" trucks and equipment) is gay slang for a relationship that progresses very quickly, for example moving in together after only a short period of time -- a pattern stereotypically attributed to relationships between two women.
We had a dyke come in to the store today we could tell she was a uhaul lesbian.
These are Lesbians that after meeting someone tend to move in with that person right away. It is a very unhealthy type of behavior that stems from their inability to date the preferred sex when they were younger for fear of retaliation or chiding.
Claire is such a U-Haul Lesbian, she met JoJo last week and they have already moved in together.