HMCD 

Hit my cellular device

me:bout to go to the mall HMCD

HMCD by Thick waves June 27, 2010

HMCDYHIYP 

"How many contacts do you have in your phone" - This acronym is used to quickly ask somehow how many phone contacts they have.

Friend 1: My contact list is so big it needs it's own spreadsheet.

Friend 2: HMCDYHIYP

HMCDYHIYP by PEGEGE January 10, 2013