a word invented by the greatest show ever, The Simpsons.
it was used in the episode
Hungry Hungry Homer originally aired on
March 04
2001.
Homer:
Kids, how would you like to go to ... Blockoland!
Bart + Lisa: Meh.
Homer: But the TV gave me the impression that --
Bart: We
said, "Meh!"
Lisa: M-e-h, meh.