(interjection) Originally onomatopoeia for the sound a person makes while regurgitating, it has been adopted to also reflect one's feelings of disgust towards another's remarks or predicament.
John Doe, "I just made this awesome gummy bear and mayonnaise sandwich!"
Jane Doe, "Bweh! That's digusting and so are you!"
A word used in place to when you dont want to add anything else to a conversation. Can be used to end a conversation abruptly and to disregard a posed quesion. *Pronouced - (see-ba-boo-eh)*
My irratated partner was telling me how i was doing the procedure wrong. She then asked me how i felt about it? I replied to her abruptly "Tsi-Bah-Bweh!"