mock-offhand response to a compliment, usually one on looks or personality.

v. collectively or individually finding someone/something to blame for a problem, as opposed to brainstorming which connotes finding solutions to a problem

n. the act of finding someone/something to blame for a problem

(from a TV ad for HD television)

Whatcanisay, A word used if out of breath to express a sign of disbelief when speechless.