Used in a way to respond to shock,
something that
caught you by surprise.
Also a short version of the
spanish term hijo de la chingada.
Pronounced: e-lo
40yr Old
Virgin: Who are you talking to?
Superman: I'm talking to Bruce Lee's daughter,
don't be jealous dude, I'm going over later and we're making babies.
(On the phone) Lee's Daughter: Illoo!
Don't call me that.
(Overheard) Batman: Wow Superman, WOW.