Top Definition
1. Meaning positve beyond doubt.
2. Superlative to "pretty" sure.
3. Synonymous with "absolutely" sure.
Q: Are you pretty sure?
A: Better, I'm ugly sure!
by Anonyruss March 30, 2008
2 more definitions
1. Meaning positve beyond doubt.
2. Superlative to "pretty" sure.
3. Synonymous with "absolutely" sure.
Q: Are you pretty sure?
A: Yeah, I'm ugly sure!
by Anonyruss March 28, 2008
The opposite of pretty sure. 49% and below sure. To lean on the side of not knowing shit.
That a last person to write a definition was so ugly sure of its meaning, they were on the cusp of not knowing shit.

I am ugly sure that Kristen loves me anymore, so I will make her cupcakes just to stay on her good side.
by anonymoustimesathousand February 22, 2015

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