Used basically like “psych!” After you have said something false to trick someone (and are believed), you say “shitty face!” For added effect, you can prolong the “ay” sound and/or drop the “s” sound in “face” entirely.
Guy 1: Yo dude, I heard Marisa likes you, man!
Guy 2: Really?! Wow!
Guy 1: Shitty face! (Or “shitty faaaaaaaace!”)
Guy 2: Really?! Wow!
Guy 1: Shitty face! (Or “shitty faaaaaaaace!”)
by Jose Blose February 26, 2018