The 'swirly bokeh' results are made from astigmatism in some of the MF lenses. They made the image looks like the background is spinning. One of the famous lenses that can produce swirly bokeh are Helios lenses made in the USSR. When you stop down the aperture, it goes away.
To get 'swirly bokeh' in your pictures you need 'bokeh' in the background, so that you'll be able to see the 'swirl' effect (e.g. bokeh of light coming between the street lights, grass or leaves...) If the background is plain or lined then you might not have it.
Here are some of the sample shots of swirly bokeh:
|untitled by *Cyrus`*|
|momiji world by yocca|
|r001-009 by Stepanova|
|Sweet, bitter cold by [ibnu.said]|
|tried to catch some snow by Liis Klammer|
|° by 333Bracket|
|colour drizzle (yes, i'm a dreamer) by Prinka Saraswati|
|Happy ♥ by Phan Hữu Lập Photography !♥|
|(0031) by hey.poggy|
|shoe got stuck into my GX by daffie @ flickr|
|untitled by sol exposure|
|The Leaf by Carsten D|