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
Unpleasant butt adventures, as in diarrhoea.
eating at taco bell resulted in some uba
Short form of 'Under Budged Ahead of Schedule', used by Donald J. Trump.
I built the hotel in Washington D.C. UBAS.
When you rapidly fuck her ass and then shit comes out and you fuck the shit into her vagina.
“I totally got to do the uba gern with her last night”