This is the phonetic
pronunciation of the 13375p33k (leetspeak) word pl0x, meaning 'please'.
Alternate pronunciations are ploox, plowx and puh-lowx. Normally, plocks is used to add emphasis to a
question that may or may not be serious, or as a last ditch attempt to get the desired response.
John: Dude, can I have some of your chicken?
James: No way, broham.
John:
Oh my god, PLOCKS?! I'm so hungry!
Joe:
Hey buddy, can I have bromission to hook up with
your sister, plocks?
John: Haha..ha..ha. No.
Joe: Ooo heh, alrighty.