What is Reah?
1.
1. an affirmative response
2. a noise made out of habbit
"Hey John can you pass me that?"
"Reah"
"....Reah"
See
2.
Meaning excitment or agreament.
Bob: I got an A on my test today!
Joe: REAH! Thats awsome!
See
3.
hot liquid diarreah spraying out of a blown open anus
man i gotta spray reah
See