What Does HEADS UP Mean? (Using HEADS UP Online)HEADS UP means "Advanced Notice".
Definition for HEADS UPHEADS UP means "Advanced Notice". This is the most common definition for HEADS UP on Snapchat, WhatsApp, Facebook, and Twitter. Here is some more information about HEADS UP:
2: Quite easy to guess
Adults and Teenagers
Using HEADS UP on a Cell Phone (SMS Texts, Whatsapp, and Yubl)