A UBA is an acronym for an Unexpected Boner Attack.

These usually happen in public places or in an awkward situation, often leading to a more awkward situation
I stood up in class to read today and all of a sudden realised I had a UBA !
It was so Unexpected
by A.Szn April 14, 2019
Get the UBA mug.
Unpleasant butt adventures, as in diarrhoea.
eating at taco bell resulted in some uba
by dftbgabby June 1, 2015
Get the UBA mug.
Short form of 'Under Budged Ahead of Schedule', used by Donald J. Trump.
by RudolphD November 13, 2016
Get the UBAS mug.
A SUPER strong emotion for some one/ some thing.
Kyle's ubaness towards Jarrod has gone way too far! He has a shrine for jarrod in his closet!
by BlahBloop April 9, 2007
Get the ubaness mug.