oopsy daisy 

Making a mistake. Usually used with a mostly insignificant mistake

Plural: oopsy daisies

Jack:oopsy daisy, just dropped my pencil
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Steve: bob what did you do?!? You just deleted your english essay

Bob: Oh crap.....i guess i just picked myself a bunch of oopsy daisies.

oopsy daisy by neckaphobia March 10, 2011

oopsy daisy 

The sissy way of saying "oh shit"

-Dude, you just broke you're moms treasured chinese vase
-oopsy daisy

oopsy daisy by poopsydaisies February 3, 2015

oopsy-daisy

To come all over a girl's face when she asks/begs you not to.
Pronounced "up-see-day-zee"

girl: Please, don't come on my face
bloke: OK...oopsy-daisy, i just did...

oopsy-daisy by B08z0r3llo September 5, 2005