slang for dick and meant to be more hurtful.
Dude, colin stole my dildo and pleasured his mom with it. He was being such a deock it's not even funny.
A more extreme use (or exaggeration) of the work dick.
Deock would be used in place of dick, penis, cock, etc.
It is sometimes used for humor, with accentuation being placed on the word 'deock.'
"That guy's a total deock!"
"Don't be such a friggin deock, man."
"There are dicks, and then there are deocks, and that right there is a deock!"