Highly advanced skills.
"OMG THAT GUY IS SO SHEEKS!"
"It takes a man of Sheeks to do make that shot"
1. An idiot
2. Someone that causes problems; if something goes wrong while a sheeks is around, you can usually assume that he/she is to blame.
1. That guy is such a fucking sheeks. What an idiot.
2. When that sheeks walked in the door, I spilled concentrated hydrochloric acid all over my face. Way to go, sheeks!