look up any word, like hipster:
 
1.
A more amazing, cooler word for blah. Its used as an expression for words or feelings where the subject that's being talked about is not considered important.
Country is so blsh.
by dendry February 28, 2009
 
2.
Buy low, sell high.
BLSH is Warren Buffet's credo.
by Little Labrador December 17, 2008