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1.
A noise primarily made by an over-excited fangirl, however it has spread rapidly and is now widely spread among the web community.
Omg!! New Harry Potter book out!! Omg Squee squee! omg!!!
by Sazzle June 07, 2004
 
22.
An exclamation of joy.
An expression of glee.
Guy 1: Dude, you won.
Guy 2: Squeee!!!!!
by babino_2 November 26, 2008
 
23.
Fangasm created via excitement of visual stimulation.
Although widely known as a JTHM character and Manga reaction, it has also been known to be reference by The Rocky Horror Picture Show group sessions, which explains the -gasm part.

"I'm lucky, You're Lucky, WE'RE ALL LUCKY!" *squee!* "The Bannister's lucky!"
by D_Marx May 13, 2010
 
24.
The sound made by robots when beaten to death in the comic book series "Magnus, Robot Fighter".
The 'bot's failing circuitry produced a piercing "SQUEEeeee...." when Magnus dealt it a crushing blow.
by Otaku Kirk August 01, 2009
 
25.
A sound that one makes in order to release the immense energy build up when one is excited as to stay earth bound. It happens when there are no other words to express the excitement of a squeal with the attention span of a squirrel!
<Insert girl's first name> was so excited that she met Nathan Fillion she squealed "Squee!"
by fionnasmom April 22, 2013
 
26.
A happy, high-pitched sound made from one's oral region.
"I'm going to see my boyfriend tomorrow. SQUEE~"
by HeyMoonDontYouGoDown November 05, 2011
 
27.
A boy/girl who incites a high pitched and excited squeal and an uncontrollable desire to squeeze and hug the other person. Usually used as a term of endearment as a way of avoiding cliches like honey, baby and muffin. 'Squee's' are often loveable, fond of strange dancing, easily excitable and can sometime have features like a monkey.
Oh Squee! who's a good boy?! I just want to squeeze your face off.

I was talking to Squee the other day and for an instant thought he had a ridiculous monkey face.
by Leopard86 October 25, 2010
 
28.
A Squirrel Going Up A Tree.
Did you see that squee?
by Nicoleebabeeexoxoxoxo July 27, 2010