look up any word, like bukkake:
 
1.
A mysterious monster of infinite evil.
watch out for the bleh bleh bleh!!
the bleh bleh bleh has charlie!
by jebus wong May 06, 2010
 
2.
Bleh to the power of 3.
Guy: *sigh*
Girl: How was your day?
Guy: BLEHBLEHBLEH GUHHHHH
Girl: So it sucked.
by Jermaine Terrell-Jacques March 15, 2005