look up any word, like blumpkin:
 
1.
said to show annoyance, dislikeing something, or just used when bored
teacher: dont forget to do your homework
student: gleh
by T-Robinson November 24, 2010
 
2.
An expression of disappointment or annoyance, or something like bleh
After being rejected, joe said "Gleh!"
by Gleh July 21, 2006