An exclaimation of surprise, amazement, or alarm.
Traditionally means "oh shit!"

Pata Sucia: Spanglish; Direct translation- dirty foot; used in reference to men and women who remove their shoes in public and then proceed to walk barefooted wherever they may be; mainly found at night clubs or after being at a night club.

LADIES, YOUR STILETTOS MAY BE PAINFUL, BUT THAT IS THE CHALLENGE YOU ACCEPTED WHEN YOU PUT THEM ON. BEAUTY=PAIN

(1)Generally meant as a '1337' shortening for "Oh shit". Often used to get around chat-filters.

(2)When emphasis is put on it, it can be used as a condescending interjection.