What is Ugly Arse?
1.
To be an "ugly arse" you'd need to be really ugly as far as looks go. Thus being described by your mates, friends and occasionally your family as an "Ugly Arse"
Tell all your friends. Its right.
Your not so beautiful ex girlfriend is a right ugly arse.
See 
Random Words:
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President Bush's new catchphrase. See also Bring Your Sister.. 
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when a girl takes a massive load in the mouth and gargles it like one would with water, only insted of water you get a nice white substa..