Twenty-footer 

A girl that only looks good from twenty feet or more.

I thought she was hot until I got up close and saw the wart on her nose. She was a twenty-footer.

Twenty-footer by Tim_D September 24, 2005

Twenty Footer 

Something that looks good from a distance, but up close it just does not look that good.

Yo, Jim's ho is a good twenty footer but get up close and ouch!
or,
Jim's ride is a good twenty footer but up close it's a rusted roach.

Twenty Footer by Surfacenavy March 30, 2009

twenty footer 

a bull dyke so egregiously masculine that she can be spotted twenty feet away

that chick is such a twenty footer she makes Rosie O'Donnell look like Miss America

twenty footer by The Velvet Hammer June 11, 2006