Short answer, no, Indiana Jones not withstanding :lol:.:
Well, I do understand that the whip cannot stretch to impossible lengths when swinging on ****. =P
Long answer, as with any weapon, it depends on the environment of engagement and the skill of the wielder.
As with anything, if it's worth doing, I do it well.
However, my guess (and it is just a guess) is that the size of whip that could be conceivably carried for self defence purposes would be more likey to enrage a would-be assailant than stop them.
Can't even the longer whips just be rolled up and hung on your belt or around your waist or carried in a shoulder bag?
Another point to think about would be most self-defense oriented weapons are of a type that can be explained away as a tool or job-related implement. Unless you're a lion tamer, or Dr. Jones, you're going to have a hard time explaining away a 10' bullwhip.
True, but if it can be carried concealed and it can effectively be used for non-lethal force (As well), then I still advocate its use.
Actuly there is a great combat application. Anyone here wear a tie for work? what about a belt? Ever think about that? I were a belt every day and a tie on wednesdays, I've given it some thought. Granted, I'd try to use it as a controlling device (more like a Japanese Hojo), then a whip per sae
That wasn't really what I was getting at. I don't believe in bandanas, et cetera.
Sukerkin, there are whips and there are whips. A shotted quirt can be deadly, and it's useful in close quarters. The sjambok, both traditional and the SA Police version, is a terrible weapon that can cut to the bone and remove fingers.
I have several coldsteel sjamboks. Although certainly effective for deterring arseholes, they cannot cut to the bone and remove fingers. I have experimented extensively with them and found that although very useful for self-defense, they cannot be conveniently carried (I.E. You can get to it quickly in a dangerous situation). That's why I developed my Bagunshu (Telescopic baton + "Battoujutsu") system.
self defense maybe not, recreation, well

...
though, as weapons of opportunity, some whipping type items could be useful. how about a two foot long thick rubber strap with a hook on the end, like for tying a load, i can see some potential. its the type of thing one might have in a car and put to effective use.
I could see that as being dangerous... - to myself.
checkout beltfighting. depending on the beltbuckel and the length with which one decides to swing or whip at, belts can be devastating weapons...
also really dangerous for self..careful. i often used to practice with the buckel in hand as support. even then some belts have these point metal finishes on the tips,,can be very painfull. shockingly painful with goosebumps that never go away or rather keep coming back!!!..
one can also trap, block or tieup
Again, I have seen especially a lot of Chinese weapons similar to this (Shuangjiegun (Nunchaku), three-section staff, meteor hammer, rope dart, chain dart (manriki gusari), et all)and I think that the hazard is more to yourself. For "fighting air" it looks really awesome, but if you actually hit something you will lose all control and kill yourself or, if you are lucky, just get your **** kicked.
I was more talking of the standard "bull whip" and variants. Something you can get accurate with without killing yourself (Though I know you can hit yourself with those too).