Open. Dancing moving away from a partner in circular movements with force. This is not unfamiliar to waltz dancers. Colgada itself is just an element of this style. Corina De La Rosa & Julio Balmaceda. This dance is smooth. This style itself is little known as a style, but as dancing style it is very definite: see Julio and Corina dancing at Tango Fireworks
(from virtuar.com (http://www.virtuar.com/tango/articles/2005/tango_styles.htm))
Tango Nuevo technique "colgada" (hanging) involves two bodies inclining away from each other, perfectly counterbalancing.
(from tangosingapore.com (http://www.tangosingapore.com/go/watch.php?t=20033Q))
For a demo, see tangovideoproject.com (http://www.tangovideoproject.com/cgi-bin/video.pl?TAG:MUSIC=Artango)