Cul-De-Sac 

A hairstyle frequently sported by middle aged men, although unintentional in design. No hair on top, but hair all the way around the back and sides.

" Steve's Cul-de-sac is pretty terrible."

Cul-De-Sac by Asmoradamordacatastindiculdicar January 11, 2008

Cul-de-sac 

When you already have a cold sack, and your girlfriend puts her cold hands on your sack, therefore creating a colder sack.

She must've had circulation problems. Every time she touched my nuts I'd get a cul-de-sac!

Cul-de-sac by Geofolous September 13, 2016

cul-de-sac 

A french expression meaning "kill the sack." During the French Revolution, many scrotums were accidentally amputated by the guillotine. These scrotums would then land on some soft cheese and mutate into horrible monsters that would scurry about the streets of France. If you came across one, it would pounce on you and bite your neck, causing you to scream "Kill the sack! Kill the sack!" At that point it was the end of the road for you. Which is why we now use the term cul-de-sac to describe a dead end in the road.

I came to a cul-de-sac and had to turn around.

cul-de-sac by duderino870 October 27, 2010

Cul-de-sac Science

The pursuit of a science research project in an applied reserach area, but which has no practical or economic viability.

His masterate thesis on the rheology of camel dung is just Cul-de-sac Science

Cul-de-sac Science by Harry Foodtech August 28, 2010

Cul-de-sac 

the balding part on top of a guys head...the balding part looks like a g-d damn cul-de-sac on a dead end street

The guy with the cul-de-sac is such a tool

Cul-de-sac by Mindy November 29, 2004

cul de sac 

the place in a woman's vagina which is the spot where you can't go in any further whether with an inanimate object or a penis.

"I was doing her last night and I hit her cul de sac which made her scream in pain."

cul de sac by CC Girl August 2, 2009

Cul De Sac 

A girl at a bar or other drinking establishment who you think you're getting somewhere with, but things unceremoniously end, leaving you alone for the night.

Ron: "Dude, that girl turned out to be a real Cul De Sac. I thought I was getting somewhere and then I just had to turn around."

Tom: "That sucks, bro."

Cul De Sac by Rak Shade August 3, 2013