wall butt 

A person, male or female, without any "junk in the trunk." A prevelant trait in skinny individuals. The opposite of a ghetto booty or bubble butt in women, but also used to describe males (unlike ghetto booty or bubble butt, which tend to solely describe the female body).

Man, did you see that girl?
-Yeah, she's got a nice body. Her friend would be the complete package too, if not for that wall butt!

I want a guy that I can grab onto. No wall butts.

wall butt by BTP May 6, 2008

Large Butthole Wall Wedgie 

When you have a deep wedgie (always) and may not be aware. Seeing that you have a deep wall for your pants or shorts to ride in all day.

Did you see that man in the brown shorts, major wedgie. He must have a Large Butthole Wall Wedgie for that to happen every time you see him.

Large Butthole Wall Wedgie by Downtown4321 August 5, 2011