- The term was most likely coined as a shortening of absconder, similarly to how info is a clipping of information. Perhaps the speaker was using short words and didn't feel like saying the entire word 'absconder' and so shortened it to 'absco'. Another possible reason for this coinage, although not as likely, might have been to have an alternative to the derogatory word 'asshole', which is a more general word of hate.
absco
clipping; noun
someone who leaves secretly and hides himself/herself from others.
Etymology : Clipping of absconder 'leave secretly', from Latin abscondere 'to hide, conceal'
Source : "That absco ditched me and I can't get a hold of him now!" — overheard in public, September 2008.
Last modified: 3 December 2008