Bleh can be used a noun, adjective, or whatever else you want.
Bleh, I blehed my bleh today. It was so bleh bleh. So, you little bleh, what the bleh are you bleh today? AWE BLEH! You're bleh kidding me, bleh?
by Conrad B. January 15, 2008
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An expression of sympathy. Not necessarily sad nor happy, it can describe self-pity or be a reply of empathy. It is ideally used when "yes" or "no" is not appropriate but yet the situation still requires some conclusion.
Self-pity: "Bleh" - I'm bored, tired and agitated but I'n not ready to shut-up and go home yet.

Reply: "Bleh" - I hear you and I feel for you, man!

In the uncomfortable quiet of a dying conversation, instead of farting, the word "bleh" just completes the situation.
by Yala February 15, 2006
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An expression used for extreme confusion of shock.
Person 1: Your earlobes are lined up with your nipples.

Person 2: BLEH?!?
by cacebo March 6, 2010
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When spoken by the non-Tenor, "bleh" is a simple interjection. However, when spoken by a Tenor, "bleh" transcends all languages, and can mean anything that the Tenor speaker wishes it to. This extremely advanced form of communication is understood and spoken only by Tenors.
"Bleh bleh bleh bleh bleh bleh bleh bleh bleh." Translation: "Wow, she's really cute, I wonder if I could get her phone number... Wait a second, I'm a Tenor, of course I can."
by The Legendary Tenor August 2, 2003
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To show disgustion in a certain act, by pretending to gag or hurl
Ew, your feet are Bleh!
by skillz October 11, 2004
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The gayest word ever. You should not use it please.
Kwen Saechao: You're so blehhhh.
Me: STFU FUCKEN FAGGOT ASS BITCH.
Kwen Saechao: blehhh.
by justin bieberrr June 29, 2010
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