(noun, adverb/adjective)

1 to greet or acknowledge, but only slightly
2 to express sentiment or mood, but only slightly

Not to be confused with blah the term bleh is generally utilized as a conversation deterrent. Oftentimes people find themselves at the mercy of a conversation they do not wish to participate in. This predicament is typically initiated by a person greeting another or by a person answering a question regarding their general state of health/well being with what might be called a conversation initiator. For example, if person A were to ask person B how he/she is doing, the answer might take the form of an unwanted 30-minute conversation. It is in situations like this, where there is pressure to acquiesce a measure of social etiquette with a response but insufficient time/desire to address the situation with the full answer as would normally be offered that we have use for this term. In definition 1 then the implied sentiment, if transcribed, would be, "I acknowledge that you still exist...that's great...good work...I'd love to take the time to greet you properly but I simply cannot at the moment." (Note: it's possible that, in fact, you would not love to take the time to greet that person properly; in any instance)

Regarding definition 2, intonation is an important variable. Again the same theme of deterring a conversation is at heart, but in the interests of satisfying social etiquette the term may be used with varying intonation to reveal some extra detail as to the person's sentiment/mood. A short descending tone might, for example, reveal anger (another reason why you should not try to have a conversation with that person), while a stretched monotone might be used to express boredom or discontent. With experience this term can come to have a variety of specific meanings when accompanied by a mastery of its applicable intonation.
Mike: "Hey John!"

John: "Bleh."

by pharass April 26, 2006
The feminine version of Special Ed from Crank Yankers. She appeared in the episode of 'The other cousin' on Drawn Together on Comedy Central.
Bleh is Princess Clara's other cousin.
by Le Mans July 08, 2005
word used when no other word can be said in reply. Also no one can counter this word. The only word that can match the prestige of the owrd bleh is growl.

warning: this word must be used wisely and only in the most dire cases.
You were supposed to be watching the kids AND washing the dishes AND you were to finish your homework! but the whole time you were talking on the phone??!!!!

by dante dayne December 27, 2004
A tired person saying blow.
Just bleh me!
by Lavos March 14, 2004
an expression of utter indecisiveness
aimloser#1: do u evr do work?
aimloser#2: bleh, nev4r
by andrew January 17, 2004
The gayest word ever. You should not use it please.
Kwen Saechao: You're so blehhhh.
Kwen Saechao: blehhh.
by justin bieberrr June 29, 2010
Its not anything, it's everything, it doesn't mean anything but it can be used in any sentence at any time for any desired effect with the right tone of voice.
It is simply a noise to make whilest to tone of your voice gives an inclination of what you are talking about.

<dude 1 hits dude 2>
<dude 2 pokes dude 1 in the eye and sais "bleh..">

Hayley: T get me a baby swan! I want a baby swan!
T: bleh.
Hayley: Get me a baby swan!
by TTTT2 June 21, 2006
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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