un-bisexual

Somebody that isn’t bisexual

“Jamal, are you bisexual or un-bisexual?”

un kept

not looking your best

hey please delete those pics lol... im un kept we can take better ones next time k?

un coco

meaning you like somebody, a crush

man jimmy i have a un coco for this girl.

un-food

vomit, especially of food you've just eaten

something that is de-eaten

Don't go in there. She puked. That's a whole lot of fucking un-food all over there.

Une Stéphane

Faire un coup foireux, ne pas être fiable, de confiance.

- Il est parti toper, je lui ai filé 20 balles pour qu'il prenne pour moi aussi et il est jamais revenu !
- Ahah, il t'a fait une Stéphane !

Un-Troll

The act of trolling resulting in the gratitude (or non-anger) of the reader.

Person 1: Dude. You're such a troll.
Person 2: Nah, man. I'm an un-troll.
Person 1: So you're a fail troll.
Person 2: I bring smiles, not hate. I un-troll.

un-stuck

adj. a word to describe something that *was* stuck.
(Other forms)
un-stucked; un-stucking; un-stuckedly; un-stuckedness

My dad is un-stucking my keyboard.