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8.
Noun.

Male underwear, specifically boxers or Y-fronts.
Roast Beef: "I ain't gonna fire up my U-Hauls just to carry my junk six feet!"
by OG-nius April 09, 2008
 
9.
Another phrase referring to female genitalia. Originated as a mis-pronunciation of hoo ha .

Also, parent of phrase "Grandma's attic", referring to a woman's anus.
Have you ever seen how much junk you can cram into a uhaul?
by spamthet January 26, 2011
 
10.
n. A word used to describe a large group of lesbians, similar to a herd of cattle or a school of fish. Derived from the joke: What do lesbians do on a second date? A: Rent a U-haul.
I was walking around the mall the other day when I was blindsided by a U-haul of lesbians. I followed them to Home Depot, though, and got some excellent home improvement tips.
by Kdubbie August 16, 2005