Is a non-binary person who simps over aizawa and found their name from an ASMR about shota aizawa
Girl: have you seen Aco?
Boy: yeah they totally simp for aizawa!
A man with a HUGE penis. every man named Aco has a horse-meat chalupa ding-dong.
girl 1: Wow his name is Aco? He’s so hot!!
girl 2: Yeah, his dick is fucking massive! I heard it slapping between his legs while he was running past my house yesterday.
A kid with a huge dick and big balls aka MR.steal yo girl
Look Aco
Ass Cheeks On Shoulders. Similar to head up your ass. An acronym used when someone does something stupid.
Person A: "Whoops. Forgot to add a decimal point. Now I'm screwed."
Person B: "What an ACOS move."
-A fucking dumbass that is bad at video games.
Guy 1: Tale the first and last letter of ur name and tell what is you new name.
Guy 2: Aco?
Guy 1: You fukin gay!?