bore fest 

If something is really boring

"This is a complete bore fest"

or could even just be said:
Guy 1 "Bore fest"
Guy 2 "Definately"

bore fest by PikiePoo July 7, 2008

borefest 

1. n. A physical or online event or experience that is the opposite of fun, ie: boring.

example: I'm glad to finally escape from that book club meeting--it was an absolute borefest.

borefest by quantazelle March 20, 2009