a word that typically is said after somthing impressive or remarkable has been stated. Usually something funny or witty.

what some might describe as a "high five moment"

it usually means - to emphasize the last thing you said.

buti it can also be used for no reason at all just to get some attention.

when you're hungover as shit after a spending a night drunk as a skunk

A greeting you say to the person you admire the most as a show of excitement and joy of talking, texting, or meeting them.

Pronounced "hey- Oh" used when a attractive person is caught by the eye, one yells heyoo to show their excitement in the person.