An exclamation used to denote ignorance of something, often interchangeable with "I don't know". Comes from pronouncing "IDK" as "I deek", shortened to "deek". Originated at Berkeley High School in California.
Verb form
P1: What was the calc homework
P2: Deek man
"Hey be careful on your start, they might deek you"
By Dell
Deeked
To do all the work in pro clubs by beating players with superb skill and dribbling to not be able to hit a shot at goal as you ‘deeked’ it and lost the ball at the last hurdle.