Boopy means "really annoying and/or bad"
For example: Guy: "Man, that person's really boopy!"
Someone who is a massive shit head
"yo whats gud homie meet my brother"
"Man he looks like a Boopy
the thing u can say in any situation. exciting, annoying, scary, etc. go all out.
1): omg im so scared
2): bOOPY POO